[tare] n [ME; prob. akin to MD tarwe wheat] (14c) 1 a: the seed of a vetch b: any of several vetches (esp. Vicia sativa and V. hirsuta)
2: a weed of grainfields usu. held to be the darnel 3 pl: an undesirable element
[2]tare n [ME, fr. MF, fr. OIt tara, fr. Ar tarha, lit., that which is removed] (15c) 1: a deduction from the gross weight of a substance and its container made in allowance for the weight of the container; also: the weight of the container
2: counterweight [3]tare vt tared ; tar.ing (1812): to ascertain or mark the tare of; esp: to weigh so as to determine the tare