Bip39 List. While you'll find BIP39 wordlists in languages apart from English, it can be strongly not advised to use non-English words for wallet backups. It would make restoring the wallet difficult or extremely hard. BIP39 specifies a list of 2048 words from which the mnemonic phrase is decided on. https://tealbookmarks.com/story18667871/bip39-https-linktr-ee-bip39-an-unbiased-view-of-bip-39