Bip39 mnemonic to private key https://list.ly/i/11078004 Despite the fact that it makes use of BIP32 approach it is possible to even now import BIP39 seeds into Electrum wallet. Also besides BIp32 There's BIP44 Edition which some wallet use with the era of seeds. For words that only have 3 letters, https://thefairlist.com/story10140120/bip39-lijst-bip39-generator-secrets-https-dzen-ru-bip39-phrase-com