Bip39. Even though there are actually BIP39 wordlists in languages other than English, it is strongly not advisable to use non-English words for wallet backups. It'd make restoring the wallet complicated or unachievable. And not using a passphrase, your resources are only as protected as your seed phrase. By introducing https://kingbookmark.com/story19609568/bip-39-https-linktr-ee-bip39-the-2-minute-rule-for-bip39-word-list