Insomnia

·noun Want of sleep; inability to sleep; wakefulness; sleeplessness.

insomnia
insomnĭa, ae, f. (plur. insomnia, n., Plin. 20, 9, 33, § 82; Prop. 2, 25, 47; Val. Fl. 1, 329; 7, 6;...

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.
insomnia
īnsomnia ae, f insomnis, sleeplessness, want of sleep, watching : te adiget horsum insomnia, T.: i...

An Elementary Latin Dictionary