chicory

(noun) the dried root of the chicory plant: used as a coffee substitute. Synonyms: chicory root.

(noun) perennial Old World herb having rayed flower heads with blue florets cultivated for its root and its heads of crisp edible leaves used in salads. Synonyms: succory, chicory plant, Cichorium intybus.

(noun) root of the chicory plant roasted and ground to substitute for or adulterate coffee. Synonyms: chicory root.

(noun) crisp spiky leaves with somewhat bitter taste. Synonyms: curly endive.