quăter, adv. num. [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.