Bip39 Dictionary. Despite the fact that you'll find BIP39 wordlists in languages aside from English, it's strongly not proposed to use non-English words for wallet backups. It would make restoring the wallet challenging or impossible. These principles apply for every single language. Also, the first 4 characters of each word https://binksites.com/story9264567/bip39-generator-https-linktr-ee-bip39-top-guidelines-of-bip39-passphrase