I. To emit vapor or steam, to steam, reek: “amnes aestate vaporatis, hieme frigidis nebulis caligent,” Col. 1, 5, 4: “aram tenui caligans vestiet umbrā,” Cic. Arat. 205 (449); cf.: “omnem quae nunc Mortalis hebetat visus tibi et umida circum Caligat, nubem eripiam,” Verg. A. 2, 606.—
B. Transf.
1. To be involved in darkness, to be dark, gloomy: “caligare oculos,” darkness covers the eyes, Lucr. 3, 157; Verg. G. 4, 468; Stat. Th. 1, 95. —
2. Poet.: “altae caligantesque fenestrae,” dizzy, Juv. 6, 31.—
II. Trop., of the understanding, to be blind, to be surrounded by darkness, to grope about: “orbatae caligant vela carinae,” Stat. S. 5, 3, 238: “caligare ad pervidendum,” Sen. Vit. Beat. 1, 1: “virtus inhorrescit ad subita, et caligabit, si, etc.,” id. Ep. 57, 4; Plin. 30, 1, 1, § 2; Quint. Decl. 18 fin.: “rex caligare alto in solio, nec pondera regni posse pati,” Sil. 14, 88.—Prov.: “caligare in sole,” to grope in broad daylight, Quint. 1, 2, 19.—
B. In medic. lang., of the eyes, to suffer from weakness, be weak, Cels. 6, 6, 32; Plin. 20, 22, 87, § 239; cf. id. 11, 37, 54, § 147.—Transf., of the person, to be dim-sighted: “caligans Thyestes,” Mart. 10, 4, 1; Scrib. Comp. 184.
