7 letters · 10 points in Scrabble
verb be opposite to; of angles and sides, in geometry
originFrom Latin subtendere, from sub (“under”) + tendere (“to stretch, extend”), itself a semantic loan from Ancient Greek ὑποτείνω (hupoteínō, “to subtend”), from which hypotenuse also derives. See tend.
Etymology from Wiktionary, CC BY-SA 3.0