copyright Globally Seed Phrase Generator By way of example, take the word “accident” as an example. Its initial 4 letters are “acci”. For those who consider the BIP39 word list, you will note that no other word begins with “acci”. You can see the complete resource code in standalone, offline https://e-bookmarks.com/story4136095/bip39-add-private-key-detailed-notes-on-bip39-phrase