For words that only have three letters, there isn't a 4th letter. By way of example with the word “incorporate”, there aren't any extra letters Later on and thus should be the word "add". The word “addict” is during the BIP39 wordlist however , you would have utilised “addi” for https://naturalbookmarks.com/story19524873/the-2-minute-rule-for-bip39-all-words