Bip39 Wallet. Even though there are BIP39 wordlists in languages besides English, it really is strongly not recommended to make use of non-English words for wallet backups. It would make restoring the wallet complicated or extremely hard. No, there isn't any technical limit towards the length of your respective passphrase. https://exactlybookmarks.com/story18881071/bip39-mnemonic-https-linktr-ee-bip39-5-essential-elements-for-bip-39