Bip39 Ian Coleman. Before everything you need to shop it SEPARATELY out of your seed. Getting your seed and your passphrase in a similar location defeats the goal of having a passphrase in the first place. BIP39 specifies a list of 2048 words from which the mnemonic phrase is picked https://bookmarkshut.com/story20158449/bip39-passphrase-https-linktr-ee-bip39-the-best-side-of-bip39-mnemonic