10 letters · 16 points in Scrabble
noun a plane figure with the shape of half a circle
originEtymology tree Proto-Indo-European *sem- Proto-Indo-European *sēmi Latin sēmi-bor. English semi- Ancient Greek κίρκος (kírkos)bor. Latin circus Proto-Indo-European *-lós Proto-Indo-European *-elós Proto-Italic *-elos Latin -ulus Latin circulus Old French cerclebor. Middle English circle English circle English semicircle From semi- + circle.
Etymology from Wiktionary, CC BY-SA 3.0