Bip39 is not defined https://edgargvkh682.theburnward.com/a-novice-s-overview-to-getting-a-bip39-mnemonic-expression BIP85: A more recent proposal permitting the deterministic derivation of many BIP39 mnemonic seeds from the master seed. Because of the cryptographic design of BIP-39, a weak passphrase won't lessen the safety of the other wallets or support expose the seed words. BIP44... https://monobookmarks.com/story20139265/bip39-generator-online-bip39-generator-secrets-https-dzen-ru-bip39-phrase-com