arugula (n.)

edible cruciform plant (Eruca sativa) used originally in the Mediterranean region as a salad, 1967, the American English and Australian form of the name (via Italian immigrants), from a dialectal variant of Italian ruchetta, a diminutive form of ruca-, from Latin eruca, a name of some cabbage-like plant, from PIE *gher(s)-uka-, from root *ghers- "to bristle" (see horror).

In England, the usual name is rocket (see rocket (n.1)), which is from Italian ruchetta via French roquette. It also sometimes is called hedge mustard.

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