Lewis & Short

2. cōlo, āvi, ātum, āre, v. a. [colum], to filter, strain, to clarify, purify (post-Aug.): ceram, Col. 9, 16, 1: mel, id. 12, 11, 1: vinum sportā palmeā, Pall. Febr. 27: sucum linteo, Plin. 25, 13, 103, § 164: thymum cribro, Col. 7, 8, 7: aliquid per linteum, Scrib. Comp. 271: ad colum, Veg. 2, 28, 19: per colum, Apic. 4, 2: aurum, App. Flor. p. 343, 20: terra colans, Plin. 31, 3, 23, § 38: faex colata, id. 31, 8, 44, § 95.
Poet.: amnes inductis retibus, i. e. to spread out a fish-net, Manil. 5, 193.
Hence, cōlātus, a, um, P. a., cleansed, purified (post-class.): nitor (beryllorum), Tert. Anim. 9.

  1. B. Trop.: certiora et colatiora somniari, Tert. Anim. 48.