Bip39 Wiki For instance, take the word “incident” as an example. Its initial 4 letters are “acci”. When you look at the BIP39 word list, you will note that no other word begins with “acci”. Make sure you make sure to permit recovery from mnemonic phrases which have invalid checksums https://thesocialintro.com/story4555284/bip39-mnemonic-to-seed-bip39-an-overview