Bip39 passphrase empty for none ) https://zanevnex175.lowescouponn.com/practical-use-a-python-based-bip39-seed-generator-in-the-real-world Despite the fact that it uses BIP32 approach you could however import BIP39 seeds into Electrum wallet. Also besides BIp32 there is BIP44 version which some wallet use for your era of seeds. For words that only have 3 letters, there isn't any https://sociallytraffic.com/story5315381/kotlin-bip39-the-fact-about-bip39-word-list-github-that-no-one-is-suggesting-https-linktr-ee-bip39