Vetch \Vetch\, n. [Also fitch; OE. ficche, feche, for veche, OF. veche, vecce, vesche, vesce, F. vesce, fr. L. vicia.]

(Bot.) Any leguminous plant of the genus Vicia, some species of which are valuable for fodder. The common species is V. sativa.

Note: The name is also applied to many other leguminous plants of different genera; as the chichling vetch, of the genus Lathyrus; the horse vetch, of the genus Hippocrepis; the kidney vetch (Anthyllis vulneraria); the milk vetch, of the genus Astragalus; the licorice vetch, or wild licorice (Abrus precatorius).

Source: Webster's Revised Unabridged Dictionary (1913)