For words that only have three letters, there isn't any 4th letter. One example is with the word “incorporate”, there won't be any far more letters afterwards and therefore needs to be the word "insert". The word “addict” is within the BIP39 wordlist however you might have employed “addi” for https://enrollbookmarks.com/story19093098/considerations-to-know-about-bip39-word-list-pdf