Bip39 Bip32 Bip44 As an example, take the word “incident” as an example. Its 1st 4 letters are “acci”. When you think about the BIP39 word list, you will notice that no other word commences with “acci”. It is possible to see the entire source code in standalone, offline html https://bookmarkhard.com/story18564949/bip39-mnemonic-to-private-key-the-best-side-of-seed-phrase-generator