in-grātiīs (T., C.) or in-grātīs (C., N.), adv.,
without thanks, unwillingly, involuntarily, on compulsion: coacta ingratiis, T.: ingratiis ut dormiam, T.: nisi plane cogit ingratiis: dicent quae necesse erit, ingratis: ad depugnandum cogi, N.
ingrātĭīs and ingrātīs, v. ingratia, II. ...
A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.