Bip39 node js https://unsplash.com/@morganvmyg While it makes use of BIP32 strategy you may nonetheless import BIP39 seeds into Electrum wallet. Also apart from BIp32 There is certainly BIP44 Edition which some wallet use for your era of seeds. For words that have only three letters, there isn't a 4th letter. https://bookmarkspy.com/story21478293/bip39-seed-phrase-word-list-the-smart-trick-of-bip39-word-list-github-that-no-one-is-discussing-https-cutt-ly-uryc5rw7