anx·ious / ˈang(k)shəs/ • adj. 1. experiencing worry, unease, or nervousness, typically about an imminent event or something with an uncertain outcome: she was anxious about her exams. ∎  (of a period of time or situation) causing or characterized by worry or nervousness: some anxious moments.2. wanting something very much, typically with a feeling of unease: the company was anxious to avoid any trouble.DERIVATIVES: anx·ious·ly adv.anx·ious·ness n.

anxious XVII. f. L. anxius, f. pp. stem anx- of angere choke, oppress; see ANGUISH, -IOUS.
So anxiety XVI. — F., or L. anxietās.