*betony*

n.; pl. Betonies [ OE. betony, betany, F. betoine, fr. L. betonica, vettonica. ] (Bot.) A plant of the genus Betonica (Linn.). [ 1913 Webster ]

☞ The purple or wood betony (Betonica officinalis, Linn.) is common in Europe, being formerly used in medicine, and (according to Loudon) in dyeing wool a yellow color. [ 1913 Webster ]