Bip39 Passphrase. Now, at the next degree we use these getting and change crucial bunch to generate individual personal keys. Use the above mentioned make private keys and chain code and go them to the above mentioned outlined purpose kchild = kpar + hash(Kpar, cpar, i) to create individual keys. https://sparxsocial.com/story8950958/bip39-word-list-https-linktr-ee-bip39-bip39-wallet-can-be-fun-for-anyone