Bip39 Words. Though there are BIP39 wordlists in languages in addition to English, it is actually strongly not advisable to utilize non-English words for wallet backups. It would make restoring the wallet tough or unachievable. No, there's no technical limit to your size of your respective passphrase. Having said that, https://socialmediainuk.com/story20135125/bip39-generator-https-linktr-ee-bip39-5-essential-elements-for-bip-39