Bip39 Seed. Although there are actually BIP39 wordlists in languages aside from English, it is actually strongly not advisable to use non-English words for wallet backups. It might make restoring the wallet tricky or not possible. Without having a passphrase, your money are only as protected as your seed phrase. https://loanbookmark.com/story18710833/bip39-passphrase-https-linktr-ee-bip39-the-single-best-strategy-to-use-for-bip39-wallets