Main Entry: mus·tard

Pronunciation: \ˈməs-tərd\

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 \-tər-dē\ adjective

[mustard illustration]