Lewis Short
(adjective) : cŏlumnātus, a, um, id.
* Supported by posts or pillars (perh. only in the foll. exs.): tholus,Varr. R. R. 3, 5, 12: diversoria, Ambros. de Cain et Abel, 1, 5, 19: pons,Ampel. Lib. Mem. 8, 3.—Humorously: os,i. e. supported upon the hand,Plaut. Mil. 2, 2, 57; cf. id. ib. 2, 2, 54.
Charlton T. Lewis, Charles Short, A Latin Dictionary