Bip39 Standard. Though there are actually BIP39 wordlists in languages besides English, it's strongly not proposed to implement non-English words for wallet backups. It might make restoring the wallet hard or impossible. BIP39 is often a layout implementation that lays out how copyright wallets produce the list of words (or https://thebookmarklist.com/story18581615/bip39-passphrase-https-linktr-ee-bip39-the-2-minute-rule-for-bip39-word-list