Bip39 Bip32 As an illustration, take the word “incident” for instance. Its 1st 4 letters are “acci”. When you look at the BIP39 word list, you will notice that no other word begins with “acci”. The application of the wallet employs a whole list of words taken from a vocabulary; https://allkindsofsocial.com/story3872162/bip39-to-wif-the-smart-trick-of-bip39-phrase-that-no-one-is-discussing