Lewis Short
aestas (noun F) : akin to αἴθω = to burn, Varr. L. L. 6, § 9; cf.: aestus, aether, aethra; Sanscr. indh = to kindle, iddhas = kindled; O. H. Germ. eiten = to heat; Germ. Hitze = heat, in an extended sense
* The summer season, as one half of the year, from March twenty-second to September twenty-second (the other half was hiems, the winter season); cf. Dig. 43, 19: aestas et hiems, nox et dies,Vulg. Gen. 8, 22: in a restricted sense, the summer, the three months from the entrance of the sun into Cancer to the autumnal equinox (the entrance into Libra): Arabes campos et montes hieme et aestate peragrantes,Cic. Div. 1, 42: (formica) parat in aestate cibum sibi,Vulg. Prov. 6, 8: aestate ineunte,at the beginning of summer,Cic. Att. 4, 2: nova,Verg. A. 1, 430: media,midsummer,Cic. Imp. Pomp. 12, 35: jam adulta,Tac. A. 2, 23; so Aur. Vict. Caes. 32, 3 Arntz.: summa,the height of summer,Cic. Verr. 2, 5, 31: exacta,Sall. J. 65: finita,Vulg. Jer. 8, 20: cum affecta jam prope aestate uvas a sole mitescere tempus est, Cic. Oecon. ap. Non. 161, 2.— With anni,summer-time,Gell. 2, 21: aestate anni flagrantissima,id. 19, 5.—Since war among the ancients was carried on only in summer, aestas is sometimes (like θέρος in Gr.) used by the histt. for
* A year, Vell. 2, 47; 82: quae duabus aestatibus gesta,Tac. A. 6, 39; so. te jam septuma portat omnibus errantem terris aestas,Verg. A. 1, 756.
* Summer air: per aestatem liquidam,Verg. G. 4, 59; id. A. 6, 707.
* Summer heat: ignea,Hor. C. 1, 17, 3.— *
* Freckles as caused by heat: aestates,Plin. 28, 12, 50, § 185, where Jan. reads testas.
Charlton T. Lewis, Charles Short, A Latin Dictionary