Bip39 Tool. Whilst there are actually BIP39 wordlists in languages besides English, it really is strongly not suggested to make use of non-English words for wallet backups. It would make restoring the wallet hard or extremely hard. No, there is no complex limit on the duration of one's passphrase. Nevertheless, https://bookmarkspiral.com/story19014611/bip-39-https-linktr-ee-bip39-bip39-wallets-things-to-know-before-you-buy