Lewis & Short

Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.

lūnātus, a, um, Part. and P. a., v. luno.

lūno, āvi, ātum, 1, v. a. [1. luna], to bend like a half-moon or crescent, to crook like a sickle (rare in the verb. finit.; freq. in the P. a.): lunavit fortiter arcum, Ov. Am. 1, 1, 23: acies geminos in arcus, Prop. 4 (5), 6, 25.
Hence, lūnātus, a, um, P. a., half-moon-shaped, crescent-shaped, lunated, falcated: Amazonidum peltae, Verg. A. 1, 490: lunata/ fronte juvenci, Stat. Th. 6, 265: lunatis obliquatur cornibus, Plin. 6, 13, 15, § 38: conchae, id. 9, 33, 52, § 102: ferramentum, Col. 12, 54.
Hence, bearing a crescent; marked with something of a crescent shape: lunatum agmen, a line of battle with shields of crescent shape, Stat. Th. 5, 145: pellis, a senator’s shoe (v. luna, I. 3.), Mart. 1, 49, 31.