For words that have only three letters, there is no 4th letter. For instance with the word “incorporate”, there isn't any a lot more letters afterwards and therefore has to be the word "add". The word “addict” is during the BIP39 wordlist however , you might have employed “addi” for https://alphabookmarking.com/story18699488/little-known-facts-about-bip39-seed-phrase-list