col-lăbĕfacto

āre, v. a.
I. to make to reel, shake, or totter (perh. only in the two foll. exs.): motu collabefactat onus, Ov. F. 1, 566.—Poet. of liquefying metals: rigorem auri, Lucr. 1, 493; cf. collabefio.
Lewis & Short
A Latin Dictionary, 1879
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