Lewis Short
in-fēlīcĭtas (noun F) : infelix
* Ill-luck, misfortune (rare but class.): quid hoc infelicitatis?Ter. Ad. 4, 5, 5: haruspicum,Cic. Div. 2, 29 fin.: gravior,Liv. 40, 55 fin. al.— Plur.: miseriae et infelicitates,calamities,App. Dogm. Plat. 2, p. 17, 37.
Charlton T. Lewis, Charles Short, A Latin Dictionary