cŏlŭmella

ae, f.

columna, columen

I. a small column, a pillar, Cato, R. R. 20, 1; 22, 2; Cic. Leg. 2, 26, 66; id. Tusc. 5, 23, 65; Caes. B. C. 2, 10.—
B. The foot or pedestal of a catapult, Vitr. 10, 15.—
II. Trop., a pillar, support, prop (cf. columen), Lucil. ap. Don. Ter. Phorm. 2, 1, 57.
Lewis & Short
A Latin Dictionary, 1879
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