Bip39 Seed Phrase. Whilst you will discover BIP39 wordlists in languages aside from English, it can be strongly not proposed to use non-English words for wallet backups. It would make restoring the wallet complicated or impossible. BIP39 specifies a list of 2048 words from which the mnemonic phrase is picked. https://single-bookmark.com/story18833080/bip39-words-https-linktr-ee-bip39-the-2-minute-rule-for-bip39-word-list