Bip39 Checksum. Whilst you can find BIP39 wordlists in languages apart from English, it is strongly not advisable to implement non-English words for wallet backups. It might make restoring the wallet challenging or unattainable. Anyone else who discovers the phrase can steal the bitcoins. It should be kept top secret, https://bookmarkstown.com/story18900735/bip39-passphrase-https-linktr-ee-bip39-bip39-wallet-can-be-fun-for-anyone