Bip39 Mnemonic Code Converter Tool. Although you can find BIP39 wordlists in languages other than English, it can be strongly not suggested to implement non-English words for wallet backups. It might make restoring the wallet hard or impossible. I've go through through the material I could try to find but https://throbsocial.com/story20927155/bip-39-https-linktr-ee-bip39-the-fact-about-bip39-words-that-no-one-is-suggesting