The Collaborative International Dictionary
Gravamens
Gravamen \Gra*va"men\, n.; pl. L. Gravamina , E. {Gravamens. [L., fr. gravare to load, burden, fr. gravis heavy, weighty. See Grave, a.] (Law) The grievance complained of; the substantial cause of the action; also, in general, the ground or essence of a complaint. Bouvier.
Wiktionary
gravamens
n. (plural of gravamen English)