triangle

triangle · noun, verb¹

1. Latin · derived fromtriangulum
2. Old French · derived fromtriangle
3. Middle English · inherited fromtriangle
4. English todaytriangle

PIE word *tréyes From Middle English triangle, from Old French triangle, from Latin triangulum, noun use of adjective triangulus (“three-cornered, having three angles”), from trēs (“three”) + angulus (“corner, angle”), equivalent to tri- + -angle.

Triangle · proper noun²

From triangle; in North Carolina from being a triangular region.

Words from the same roots