Where does “bơ” come from?

bơ (Vietnamese) comes from French beurre, from Middle French burre, from Old French bure, from Latin būtȳrum, from Ancient Greek βούτυρον, from Ancient Greek τυρός, from Proto-Hellenic tūrós, from Proto-Indo-European tuh₂-ró-s — to swell; to crowd; to be strong.

bơ (Vietnamese): butter; avocado; to ignore