Lewis & Short

Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.

millĭes or mīlĭes (milliens or mi-liens), adv. [mille], a thousand times (class.): quinquies millies, Plin. 2, 23, 21, § 85: semel et tricies millies mille, Vitr. 1, 6.
Innumerable times: moreretur prius millies quam, Cic. Rab. Perd. 5, 15; id. Sest. 58, 123; id. Att. 7, 11, 1: genera juris millies mutata sunt, id. Rep. 3, 10, 17: millies melius, a thousand times better, id. Phil. 2, 44, 112: plus miliens audivi, more than a thousand times, Ter. Eun. 3, 1, 32.