Bip39. Even though there are actually BIP39 wordlists in languages aside from English, it really is strongly not advisable to work with non-English words for wallet backups. It'd make restoring the wallet tricky or difficult. None of those examples are worried about arguments that you'd probably use for differing kinds https://socialrus.com/story19881058/bip39-words-https-linktr-ee-bip39-not-known-details-about-bip39-wallets