Bip39 Words. While there are actually BIP39 wordlists in languages in addition to English, it can be strongly not proposed to use non-English words for wallet backups. It would make restoring the wallet complicated or unachievable. This functions because BIP39 is supported by a great number of wallet brands. As https://socialtechnet.com/story5123726/bip39-word-list-https-linktr-ee-bip39-not-known-factual-statements-about-bip39-list