Bip39. Though you can find BIP39 wordlists in languages apart from English, it is strongly not proposed to employ non-English words for wallet backups. It would make restoring the wallet challenging or unattainable. tell your wallet How to define your cash guiding it through the tree and are described in https://wise-social.com/story4517114/bip-39-https-linktr-ee-bip39-5-essential-elements-for-bip39-word-list