I.a wailing, moaning, weeping, lamenting, lamentation (class.; cf.: “querela, questus, lamentum, plangor, planctus): lamentatio (est) aegritudo, cum ejulatu,” Cic. Tusc. 4, 8, 18: “aegritudo, lacrumae, lamentatio,” Plaut. Merc. 5, 2, 29: “lugubris fletusque maerens,” Cic. Tusc. 1, 13, 30: “plangore et lamentatione complerimus forum,” id. Or. 38, 131; Cic. Verr. 2, 4, 21, § 47: “cottidianae virginis,” id. Font. 17, 47: “(funeris),” id. Leg. 2, 23, 59; Plin. 8, 7, 7, § 21: “nox lamentationis,” Vulg. Jer. 9, 19.—
II. Transf., plur. (in eccl. Lat.): “Lamentationes,” title of the book of afflictions, written by the prophet Jeremiah, Vulg. 2 Paral. 35, 25 al.