col-lăbĕfīo (conl-), factus, fiĕri
* 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,sink together,Lucr. 3, 585 (601): ut altera (navis) praefracto rostro tota collabefieret,was dashed in pieces,Caes. B. C. 2, 6.— Poet. of the melting of metals, Lucr. 4, 697 (cf. collabefacto; and labefacta,Verg. A. 8, 390).
* Trop., to overthrow, supplant: a Themistocle collabefactus,Nep. Arist. 1, 2.

s. TLL