Lewis Short
(interjection) : āh or ā (v. Neue, Formenl. II. 812), [acc. to Prisc. 570 P. contract. from aha]
* Ah! alas! ha! ah me! an exclamation.
* Of pain or grief, Gr. αἴ, αἴ: ah, nescis quam doleam,Ter. Heaut. 5, 1, 61; Verg. E. 1, 15.
* Of entreaty to avert an evil: ah! noli,do not, I pray!Plaut. Am. 1, 3, 22.
* Of indignation or reproach: ah stulte,Ter. Ad. 4, 7, 6: ah, rogitas?id. And. 5, 1, 9; 3, 1, 11.
* Of admonition: ah, ne me obsecra,Ter. And. 3, 3, 11: ah desine,id. ib. 5, 6, 8.
* Of consolation: quid? ah volet, certo scio,Ter. Eun. 5, 2, 50.
* Of raillery or joy, Plaut. Curc. 1, 2, 39.
Charlton T. Lewis, Charles Short, A Latin Dictionary