A kind of mustard made with verjuice (or, more recently, white wine) instead of vinegar.

Look within oneself to summon a particular positive quality, such as strength, energy or courage.

mustard greens

mustard greens

mustard greens (Brassica juncea)

mustard greens

Brassica juncea, a mustard plant with edible leaves, seeds, and stem.

A poultice of mustard seed powder spread inside a protective dressing and applied to the chest or abdomen to stimulate healing.

Any of several species of the cruciferous genus Erysimum, especially Erysimum cheiranthoides, which was formerly used as an ingredient in Venice treacle, or theriac.

(archaic) The medicinal use of mustard plasters.