mallow
Unknown, but likely a substrate word related to Hebrew מַלּוּחַ (mallū́aḥ, “saltbush”) and Ancient Greek μαλάχη (malákhē, “mallow”). Compare also Middle Armenian բաղբակ (baġbak) and Georgian ბალბა (balba, “mallow”).
Practice speaking and memorizing "malva" and many other words and sentences in Latin.