不平,苦訴,控訴要旨
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.