Bip39 Seed. Whilst you'll find BIP39 wordlists in languages in addition to English, it's strongly not encouraged to implement non-English words for wallet backups. It might make restoring the wallet challenging or unachievable. Entropy is a complicated function. Your mnemonic can be insecure if this characteristic is employed improperly. Read https://bookmarkbirth.com/story19788608/bip39-words-https-linktr-ee-bip39-the-best-side-of-bip39-mnemonic