Bip39 npm https://giphy.com/channel/ebliciwsah BIP85: A more recent proposal allowing the deterministic derivation of multiple BIP39 mnemonic seeds from the master seed. For words that have only three letters, there is absolutely no 4th letter. By way of example With all the word “include”, there aren't any additional letters afterwards and https://bookmarkinglive.com/story21567728/bip39-min-js-download-the-smart-trick-of-bip39-wallet-that-no-one-is-discussing-https-dzen-ru-bip39-phrase-com