col-lăbĕfīo

I. v. pass., to be made to reel or totter, to be brought to ruin (perh. only in the foll. examples): haec (mens animaeque potestas) ipso cum corpore collabefiunt, Lucr. 3, 585 (601): ut altera (navis) praefracto rostro tota collabefieret, Caes. B. C. 2, 6.— Poet. of the melting of metals, Lucr. 4, 697 (cf. collabefacto; and labefacta, Verg. A. 8, 390).—

II. Trop., to overthrow, supplant: a Themistocle collabefactus, Nep. Arist. 1, 2.