Bip39 Mnemonic. While you'll find BIP39 wordlists in languages aside from English, it is strongly not proposed to implement non-English words for wallet backups. It might make restoring the wallet hard or unattainable. Entropy is an advanced characteristic. Your mnemonic could possibly be insecure if this feature is used incorrectly. https://setbookmarks.com/story18725773/bip39-https-linktr-ee-bip39-top-guidelines-of-bip39-passphrase