Lewis Short
(adjective) : cŏlumbārĭus, a, um, columba
* Pertaining to doves; only subst.
* Cŏ-lumbārĭus, ii, m., a dove-keeper, Varr. R. R. 2, 7, 7; 3, 7, 5.
* Cŏlumbārĭum, ii, n.
* A dove-cot, pigeon-house, Varr. R. R. 3, 7, 4 sq.; Col. 8, 8, 3; 8, 8, 6; 8, 11, 3; Pall. 1, 24; Plin. 19, 9, 6, § 51; Dig. 10, 2, 8, § 1.
* Transf.
* In archit., the gain or mortise in which rafters or joists lie, Vitr. 4, 2, 4.
* A hole near the axle of a water-wheel, Vitr. 10, 9, 2.
* An opening in the side of a vessel for the oars to pass through, a rowlock; plur.: columbaria in summis lateribus navium loca concava, per quae eminent remi,Isid. Orig. 19, 2, 3; cf. Fest. p. 169, 8.—Hence, cŏlumbā-rĭus, ii, m., an oarsman, as a term of reproach. Plaut. ap. Fest. l. l.
* A subterranean sepulchre, in the walls of which were niches for urns of ashes, Inscr. Orell. 2975; 4513; v. Dict. of Antiq. s. v. columbarium.
Charlton T. Lewis, Charles Short, A Latin Dictionary