Bip39 Standard. Despite the fact that there are BIP39 wordlists in languages in addition to English, it can be strongly not proposed to utilize non-English words for wallet backups. It'd make restoring the wallet complicated or unattainable. No, there is no technical limit to your length of your respective passphrase. https://trackbookmark.com/story21190722/ian-coleman-bip39-https-linktr-ee-bip39-the-2-minute-rule-for-bip39-word-list