Meaning

noun a circular segment of a curve

noun the act of changing or reversing the direction of the course

noun (game) the activity of doing something in an agreed succession

originEtymology tree Proto-Indo-European *terh₁- Proto-Indo-European *-nos Proto-Indo-European *tórh₁nos Proto-Hellenic *tórnos Ancient Greek τόρνος (tórnos)bor. Latin tornus Proto-Indo-European *-h₂ Proto-Indo-European *-éh₂ Proto-Indo-European *-yéti Proto-Indo-European *-eh₂yéti Proto-Italic *-āō Latin -ō Latin tornōbor. Proto-West Germanic *turnēn Old English turnian ▲ Latin tornō Old French…

Etymology from Wiktionary, CC BY-SA 3.0