Bip39 Mnemonic. Even though there are actually BIP39 wordlists in languages aside from English, it's strongly not proposed to work with non-English words for wallet backups. It'd make restoring the wallet tough or unachievable. I have read through by the material I could search for but none is giving me https://techonpage.com/story4310950/bip39-https-linktr-ee-bip39-not-known-factual-statements-about-ian-coleman-bip39