BIP39 stands for Bitcoin Improvement Proposal 39. The words are chosen from a selected list of 2048 prevalent English words which may be used to the generate a binary seed (your private key). BIP39 and 44, Conversely, certainly are a Newer type of standardization of a specific list of words https://bookmarkloves.com/story20799111/5-simple-techniques-for-bip39-word-list-pdf