grammar: prefer peg-in to pegin in messages

diff --git a/src/chainparams.cpp b/src/chainparams.cpp
index e3490d5..1eb76a4 100644
--- a/src/chainparams.cpp
+++ b/src/chainparams.cpp
@@ -977,7 +977,7 @@ protected:
         pegin_subsidy = ParsePeginSubsidy(args);
         pegin_minimum = ParsePeginMinimum(args);
         if (pegin_subsidy.threshold < pegin_minimum.amount) {
-            throw std::runtime_error(strprintf("Pegin subsidy threshold (%s) must be greater than or equal to pegin minimum amount (%s)", FormatMoney(pegin_subsidy.threshold), FormatMoney(pegin_minimum.amount)));
+            throw std::runtime_error(strprintf("Peg-in subsidy threshold (%s) must be greater than or equal to peg-in minimum amount (%s)", FormatMoney(pegin_subsidy.threshold), FormatMoney(pegin_minimum.amount)));
         }
 
         // Calculate pegged Bitcoin asset
@@ -1228,7 +1228,7 @@ public:
         pegin_subsidy = ParsePeginSubsidy(args);
         pegin_minimum = ParsePeginMinimum(args);
         if (pegin_subsidy.threshold < pegin_minimum.amount) {
-            throw std::runtime_error(strprintf("Pegin subsidy threshold (%s) must be greater than or equal to pegin minimum amount (%s)", FormatMoney(pegin_subsidy.threshold), FormatMoney(pegin_minimum.amount)));
+            throw std::runtime_error(strprintf("Peg-in subsidy threshold (%s) must be greater than or equal to peg-in minimum amount (%s)", FormatMoney(pegin_subsidy.threshold), FormatMoney(pegin_minimum.amount)));
         }
 
         parentGenesisBlockHash = uint256S("000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f");
@@ -1593,7 +1593,7 @@ public:
         pegin_subsidy = ParsePeginSubsidy(args);
         pegin_minimum = ParsePeginMinimum(args);
         if (pegin_subsidy.threshold < pegin_minimum.amount) {
-            throw std::runtime_error(strprintf("Pegin subsidy threshold (%s) must be greater than or equal to pegin minimum amount (%s)", FormatMoney(pegin_subsidy.threshold), FormatMoney(pegin_minimum.amount)));
+            throw std::runtime_error(strprintf("Peg-in subsidy threshold (%s) must be greater than or equal to peg-in minimum amount (%s)", FormatMoney(pegin_subsidy.threshold), FormatMoney(pegin_minimum.amount)));
         }
 
         if (args.IsArgSet("-parentgenesisblockhash")) {
diff --git a/src/init.cpp b/src/init.cpp
index d1d8db2..d8dd3dc 100644
--- a/src/init.cpp
+++ b/src/init.cpp
@@ -629,7 +629,7 @@ void SetupServerArgs(ArgsManager& argsman)
     argsman.AddArg("-mainchainrpcpassword=<pwd>", "The rpc password which the daemon will use to connect to the trusted mainchain daemon to validate peg-ins, if enabled. (default: cookie auth)", ArgsManager::ALLOW_ANY | ArgsManager::SENSITIVE, OptionsCategory::ELEMENTS);
     argsman.AddArg("-mainchainrpccookiefile=<file>", "The bitcoind cookie auth path which the daemon will use to connect to the trusted mainchain daemon to validate peg-ins. (default: `<datadir>/regtest/.cookie`)", ArgsManager::ALLOW_ANY, OptionsCategory::ELEMENTS);
     argsman.AddArg("-mainchainrpctimeout=<n>", strprintf("Timeout in seconds during mainchain RPC requests, or 0 for no timeout. (default: %d)", DEFAULT_HTTP_CLIENT_TIMEOUT), ArgsManager::ALLOW_ANY, OptionsCategory::ELEMENTS);
-    argsman.AddArg("-peginconfirmationdepth=<n>", strprintf("Pegin claims must be this deep to be considered valid. (default: %d)", DEFAULT_PEGIN_CONFIRMATION_DEPTH), ArgsManager::ALLOW_ANY, OptionsCategory::ELEMENTS);
+    argsman.AddArg("-peginconfirmationdepth=<n>", strprintf("Peg-in claims must be this deep to be considered valid. (default: %d)", DEFAULT_PEGIN_CONFIRMATION_DEPTH), ArgsManager::ALLOW_ANY, OptionsCategory::ELEMENTS);
     argsman.AddArg("-parentpubkeyprefix", strprintf("The byte prefix, in decimal, of the parent chain's base58 pubkey address. (default: %d)", 111), ArgsManager::ALLOW_ANY, OptionsCategory::CHAINPARAMS);
     argsman.AddArg("-parentscriptprefix", strprintf("The byte prefix, in decimal, of the parent chain's base58 script address. (default: %d)", 196), ArgsManager::ALLOW_ANY, OptionsCategory::CHAINPARAMS);
     argsman.AddArg("-parent_bech32_hrp", strprintf("The human-readable part of the parent chain's bech32 encoding. (default: %s)", "bc"), ArgsManager::ALLOW_ANY, OptionsCategory::CHAINPARAMS);
@@ -1968,7 +1968,7 @@ bool AppInitMain(NodeContext& node, interfaces::BlockAndHeaderTipInfo* tip_info)
     if (gArgs.GetBoolArg("-validatepegin", Params().GetConsensus().has_parent_chain)) {
         uiInterface.InitMessage(_("Awaiting mainchain RPC warmup").translated);
         if (!MainchainRPCCheck()) {
-            const std::string err_msg = "ERROR: elements is set to verify pegins but cannot get a valid response from the mainchain daemon. Please check debug.log for more information.\n\nIf you haven't setup a bitcoind please get the latest stable version from https://bitcoincore.org/en/download/ or if you do not need to validate pegins set in your elements configuration validatepegin=0";
+            const std::string err_msg = "ERROR: elements is set to verify peg-ins but cannot get a valid response from the mainchain daemon. Please check debug.log for more information.\n\nIf you haven't setup a bitcoind please get the latest stable version from https://bitcoincore.org/en/download/ or if you do not need to validate peg-ins set in your elements configuration validatepegin=0";
             // We fail immediately if this node has RPC server enabled
             if (gArgs.GetBoolArg("-server", false)) {
                 InitError(Untranslated(err_msg));
@@ -1979,7 +1979,7 @@ bool AppInitMain(NodeContext& node, interfaces::BlockAndHeaderTipInfo* tip_info)
                 gArgs.SoftSetArg("-validatepegin", "0");
             }
         }
-        // if we are validating pegin subsidy or minimum then we require bitcoind >= v25
+        // if we are validating peg-in subsidy or minimum then we require bitcoind >= v25
         if (Params().GetPeginSubsidy().IsDefined() || Params().GetPeginMinimum().IsDefined()) {
             UniValue params(UniValue::VARR);
             UniValue reply = CallMainChainRPC("getnetworkinfo", params);
@@ -1990,7 +1990,7 @@ bool AppInitMain(NodeContext& node, interfaces::BlockAndHeaderTipInfo* tip_info)
                 const int version = reply["result"]["version"].get_int();
                 const std::string& subversion = reply["result"]["subversion"].get_str();
                 if (version < 250000 && subversion.find("Satoshi") != std::string::npos) {
-                    const std::string err = strprintf("ERROR: parent bitcoind must be version 25 or newer for pegin subsidy/minimum validation. Found version: %s", version);
+                    const std::string err = strprintf("ERROR: parent bitcoind must be version 25 or newer for peg-in subsidy/minimum validation. Found version: %s", version);
                     InitError(Untranslated(err));
                     return false;
                 }
diff --git a/src/wallet/rpc/elements.cpp b/src/wallet/rpc/elements.cpp
index 93aab0b..0f0f0c7 100644
--- a/src/wallet/rpc/elements.cpp
+++ b/src/wallet/rpc/elements.cpp
@@ -453,7 +453,7 @@ RPCHelpMan initpegoutwallet()
 RPCHelpMan sendtomainchain_base()
 {
     return RPCHelpMan{"sendtomainchain",
-                "\nSends sidechain funds to the given mainchain address, through the federated pegin mechanism\n"
+                "\nSends sidechain funds to the given mainchain address, through the federated peg-in mechanism\n"
                 + wallet::HELP_REQUIRING_PASSPHRASE,
                 {
                     {"address", RPCArg::Type::STR, RPCArg::Optional::NO, "The destination address on Bitcoin mainchain"},
@@ -842,18 +842,18 @@ static UniValue createrawpegin(const JSONRPCRequest& request, T_tx_ref& txBTCRef
     // Make the tx
     CMutableTransaction mtx;
 
-    // Construct pegin input
+    // Construct peg-in input
     CreatePegInInput(mtx, 0, txBTCRef, merkleBlock, claim_scripts, txData, txOutProofData, wallet->chain().getTip());
 
     // Get value for peg-in output
     CAmount value = 0;
     if (!GetAmountFromParentChainPegin(value, *txBTCRef, mtx.vin[0].prevout.n)) {
-        throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("Amounts to pegin must be explicit and asset must be %s", Params().GetConsensus().parent_pegged_asset.GetHex()));
+        throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("Amounts to peg-in must be explicit and asset must be %s", Params().GetConsensus().parent_pegged_asset.GetHex()));
     }
 
     const PeginMinimum pegin_minimum = Params().GetPeginMinimum();
     if (pwallet->chain().getTip()->nHeight >= pegin_minimum.height && value < pegin_minimum.amount) {
-        throw JSONRPCError(RPC_WALLET_ERROR, strprintf("Pegin amount (%d) is lower than the minimum pegin amount for this chain (%d).", FormatMoney(value), FormatMoney(pegin_minimum.amount)));
+        throw JSONRPCError(RPC_WALLET_ERROR, strprintf("Peg-in amount (%d) is lower than the minimum peg-in amount for this chain (%d).", FormatMoney(value), FormatMoney(pegin_minimum.amount)));
     }
 
     const PeginSubsidy pegin_subsidy = Params().GetPeginSubsidy();
@@ -985,7 +985,7 @@ static UniValue createrawpegin(const JSONRPCRequest& request, T_tx_ref& txBTCRef
 RPCHelpMan createrawpegin()
 {
     return RPCHelpMan{"createrawpegin",
-                "\nCreates a raw transaction to claim coins from the main chain by creating a pegin transaction with the necessary metadata after the corresponding Bitcoin transaction.\n"
+                "\nCreates a raw transaction to claim coins from the main chain by creating a peg-in transaction with the necessary metadata after the corresponding Bitcoin transaction.\n"
                 "Note that this call will not sign the transaction.\n"
                 "If a transaction is not relayed it may require manual addition to a functionary mempool in order for it to be mined.\n",
                 {
@@ -1035,7 +1035,7 @@ RPCHelpMan createrawpegin()
 RPCHelpMan claimpegin()
 {
     return RPCHelpMan{"claimpegin",
-                "\nClaim coins from the main chain by creating a pegin transaction with the necessary metadata after the corresponding Bitcoin transaction.\n"
+                "\nClaim coins from the main chain by creating a peg-in transaction with the necessary metadata after the corresponding Bitcoin transaction.\n"
                 "Note that the transaction will not be relayed unless it is buried at least 102 blocks deep.\n"
                 "If a transaction is not relayed it may require manual addition to a functionary mempool in order for it to be mined.\n",
                 {
@@ -1097,7 +1097,7 @@ RPCHelpMan claimpegin()
         throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "TX decode failed");
     }
 
-    // To check if it's not double spending an existing pegin UTXO, we check mempool acceptance.
+    // To check if it's not double spending an existing peg-in UTXO, we check mempool acceptance.
     const MempoolAcceptResult res = pwallet->chain().testPeginClaimAcceptance(MakeTransactionRef(mtx));
     if (res.m_result_type != MempoolAcceptResult::ResultType::VALID) {
         bilingual_str error = Untranslated(strprintf("Error: The transaction was rejected! Reason given: %s", res.m_state.ToString()));
@@ -1303,7 +1303,7 @@ RPCHelpMan blindrawtransaction()
     for (size_t nIn = 0; nIn < tx.vin.size(); ++nIn) {
         COutPoint prevout = tx.vin[nIn].prevout;
 
-        // Special handling for pegin inputs: no blinds and explicit amount/asset.
+        // Special handling for peg-in inputs: no blinds and explicit amount/asset.
         if (tx.vin[nIn].m_is_pegin) {
             std::string err;
             if (tx.witness.vtxinwit.size() != tx.vin.size() || !IsValidPeginWitness(tx.witness.vtxinwit[nIn].m_pegin_witness, fedpegscripts, prevout, err, false)) {
diff --git a/test/functional/feature_pegin_subsidy.py b/test/functional/feature_pegin_subsidy.py
index 695cae0..020622b 100755
--- a/test/functional/feature_pegin_subsidy.py
+++ b/test/functional/feature_pegin_subsidy.py
@@ -243,7 +243,7 @@ class PeginSubsidyTest(BitcoinTestFramework):
         assert_equal(result["pegin_subsidy_height"], PEGIN_SUBSIDY_HEIGHT)
         assert_equal(result["pegin_subsidy_active"], False)
 
-        self.log.info("check min pegin amount before minimum pegin height")
+        self.log.info("check min peg-in amount before minimum peg-in height")
         assert_equal(sidechain.getblockchaininfo()["blocks"], PEGIN_MINIMUM_HEIGHT - 1)
         txid, vout, txoutproof, bitcoin_txhex, claim_script = parent_pegin(parent, sidechain, amount=0.5)
         pegin_txid = sidechain.claimpegin(bitcoin_txhex, txoutproof, claim_script)
@@ -267,11 +267,11 @@ class PeginSubsidyTest(BitcoinTestFramework):
         assert_equal(result["pegin_subsidy_height"], PEGIN_SUBSIDY_HEIGHT)
         assert_equal(result["pegin_subsidy_active"], False)
 
-        self.log.info("check min pegin amount after minimum pegin height")
+        self.log.info("check min peg-in amount after minimum peg-in height")
         txid, vout, txoutproof, bitcoin_txhex, claim_script = parent_pegin(parent, sidechain, amount=0.5)
         assert_raises_rpc_error(
             -4,
-            "Pegin amount (0.50) is lower than the minimum pegin amount for this chain (1.00).",
+            "Peg-in amount (0.50) is lower than the minimum peg-in amount for this chain (1.00).",
             sidechain.claimpegin,
             bitcoin_txhex,
             txoutproof,
@@ -436,7 +436,7 @@ class PeginSubsidyTest(BitcoinTestFramework):
             signed["hex"],
         )
 
-        self.log.info("blinded pegin above threshold, with validatepegin")
+        self.log.info("blinded peg-in above threshold, with validatepegin")
         txid, vout, txoutproof, bitcoin_txhex, claim_script = parent_pegin(parent, sidechain, amount=2.0, feerate=1.0)
         addr = sidechain.getnewaddress(address_type="blech32")
         utxo = sidechain.listunspent()[0]
@@ -664,7 +664,7 @@ class PeginSubsidyTest(BitcoinTestFramework):
         assert_equal(len(pegin_tx["decoded"]["vout"]), 3)
         assert_equal(pegin_tx["decoded"]["vout"][1]["value"], Decimal("0.00000396"))
 
-        # check manually constructed pegin from a sub 1 sat/vb parent
+        # check manually constructed peg-in from a sub 1 sat/vb parent
         txid, vout, txoutproof, bitcoin_txhex, claim_script = parent_pegin(parent, sidechain, amount=1, feerate=0.1)
         inputs = [
             {
@@ -798,20 +798,20 @@ class PeginSubsidyTest(BitcoinTestFramework):
         sidechain.sendrawtransaction(signed["hex"])
         self.generate(sidechain2, 1, sync_fun=sync_sidechain)
 
-        # minimum pegin amount is 1.0
-        self.log.info("claimpegin below minimum pegin amount")
+        # minimum peg-in amount is 1.0
+        self.log.info("claimpegin below minimum peg-in amount")
         txid, vout, txoutproof, bitcoin_txhex, claim_script = parent_pegin(parent, sidechain, amount=0.99999999)
         assert_raises_rpc_error(
             -4,
-            "Pegin amount (0.99999999) is lower than the minimum pegin amount for this chain (1.00).",
+            "Peg-in amount (0.99999999) is lower than the minimum peg-in amount for this chain (1.00).",
             sidechain2.claimpegin,
             bitcoin_txhex,
             txoutproof,
             claim_script,
         )
 
-        # check minimum pegin amount in mempool validation by constructing manually
-        self.log.info("rawtransaction below minimum pegin amount")
+        # check minimum peg-in amount in mempool validation by constructing manually
+        self.log.info("rawtransaction below minimum peg-in amount")
         txid, vout, txoutproof, bitcoin_txhex, claim_script = parent_pegin(parent, sidechain2, amount=0.99999999)
         addr = sidechain2.getnewaddress()
         inputs = [
@@ -835,10 +835,10 @@ class PeginSubsidyTest(BitcoinTestFramework):
         signed = sidechain2.signrawtransactionwithwallet(raw)
         assert_equal(signed["complete"], True)
         accept = sidechain2.testmempoolaccept([signed["hex"]])
-        # node2 can check the min pegin amount as the pegin amount is in the witness
+        # node2 can check the min peg-in amount as the peg-in amount is in the witness
         assert_equal(accept[0]["allowed"], False)
         assert_equal(accept[0]["reject-reason"], "pegin-value-too-low")
-        # node1 rejects below the min pegin amount with validatepegin
+        # node1 rejects below the min peg-in amount with validatepegin
         accept = sidechain.testmempoolaccept([signed["hex"]])
         assert_equal(accept[0]["allowed"], False)
         assert_equal(accept[0]["reject-reason"], "pegin-value-too-low")
@@ -860,7 +860,7 @@ class PeginSubsidyTest(BitcoinTestFramework):
             self.generate(sidechain, 1, sync_fun=sync_sidechain)
 
         # dust error
-        # restart node1 with no min pegin amount
+        # restart node1 with no min peg-in amount
         self.stop_node(1, expected_stderr=self.expected_stderr)  # when running with bitcoind as parent node this stderr can occur
         self.start_node(1, extra_args=sidechain.extra_args + ["-peginminamount=0"])
         self.log.info("claimpegin dust error")