Lewis Short
(adverb) : quăter, quattuor
* Four times: quater in anno pariunt,Varr. R. R. 3, 10; Verg. A. 2, 242; Hor. S. 2, 3, 1.—With other numerals: quater quinis minis,Plaut. Ps. 1, 3, 111: quater deni,forty,Ov. M. 7, 293: quater decies,fourteen times,Cic. Verr. 2, 1, 39, § 100: quater centies,Vitr. 10, 14. —Freq. in phrase: ter et quater, ter aut quater, or terque quaterque, three and (or) four times, i. e. over and over again, often, extremely: ter et quater Anno revisens aequor,Hor. C. 1, 31, 13: corvi presso ter gutture voces Aut quater ingeminant,Verg. G. 1, 410: terque quaterque solum scindendum,id. ib. 2, 399: terque quaterque beati,id. A. 1, 94: o mihi felicem terque quaterque diem,Tib. 3, 3, 26.
Charlton T. Lewis, Charles Short, A Latin Dictionary