I.a watching all night, a remaining awake or sitting up all night long.
I. In gen., Plin. 11, 53, 118, § 283: “pervigilio fatigati,” Just. 13, 8, 6: “inter cotidiana pervigilia fessus,” Sen. Ira, 3, 29, 1.—
II. In partic., a devotional watching, a vigil: “castra pervigilio neglecta, Liv 23, 35: celebrare,” Tac. A. 15, 44: “indicere,” Suet. Calig. 54: “pervigilio anniversario colere,” id. Galb. 4: “agere,” id. Vit. 10; Plin. 18, 12, 32, § 124: Pervigilium Veneris, the name of a little Latin poem by an unknown author, of perhaps the second century A. D.