BIP39 stands for Bitcoin Advancement Proposal 39. The words are picked from a particular list of 2048 common English words that may be accustomed to the generate a binary seed (your private essential). Standard recovery phrases use a selected list of 2048 words next the BIP39 standard (Bitcoin Enhancement Proposal https://bookmarkilo.com/story19025590/ledger-seed-phrase-bip39-no-further-a-mystery