n.
Pronunciation: ' m ə s-t ə rd
Function: noun
Etymology: Middle English, from Anglo-French mustarde, from must must, from Latin mustum
Date: 13th century
1 a : a pungent yellow powder of the seeds of any of several common mustards ( Brassica hirta, B. nigra, or B. juncea ) used as a condiment or in medicine as a stimulant and diuretic, an emetic, or a counterirritant b slang : ZEST
2 : any of several herbs (genus Brassica of the family Cruciferae syn. Brassicaceae, the mustard family) with lobed leaves, yellow flowers, and linear beaked pods
3 : a dark to moderate yellow
– mus · tardy \ -t ə r-d ē \ adjective
mustard 1a