Where does “butur” come from?
butur (Icelandic) comes from Old English botere, from Latin butyrum, from Ancient Greek βούτυρον, from Ancient Greek τυρός, from Proto-Hellenic tūrós, from Proto-Indo-European tuh₂-ró-s, from Proto-Indo-European tewh₂- — to swell; to crowd; to be strong.
butur (Icelandic): piece, bit
Ancestry of “butur”, step by step