gra·va·men 
(grə-vāmən)
(grə-vāmən)n. pl. gra·va·mens or gra·vam·i·na (-vămə-nə)
Law
Law
The main claim or most important aspect of a complaint against a defendant.
[Medieval Latin gravāmen, injury, accusation, from Late Latin, encumbrance, obligation, from Latin gravāre, to burden, from gravis, heavy; see GRAVE2.]