Bip39 Checksum. Even though you will find BIP39 wordlists in languages besides English, it truly is strongly not advised to make use of non-English words for wallet backups. It'd make restoring the wallet tricky or extremely hard. Without a passphrase, your money are only as protected as your seed phrase. https://wise-social.com/story4124747/bip39-word-list-https-linktr-ee-bip39-a-review-of-bip39-words