Bip39 Ian Coleman. Even though there are BIP39 wordlists in languages besides English, it's strongly not suggested to implement non-English words for wallet backups. It would make restoring the wallet hard or extremely hard. It is usually discouraged to produce words directly from considered and use a safe cryptographic function https://thebookpage.com/story4412988/bip39-mnemonic-https-linktr-ee-bip39-top-guidelines-of-bip39-words