Lewis & Short

collŭvĭo (conl-), ōnis, and collŭvĭ-es, em, ē (the latter form not freq. before the Aug. per.; but exclusively used by Col., Pliny the elder, and Tac.; a third collat. form collŭvĭum, acc. to Isid. Diff. Verb. 40), f. [colluo], a conflux or collection of filth, washings, sweepings, draff, swill.

  1. I. Prop.
          1. (α) Colluvies, Dig. 43, 22, 1, §§ 2 and 4: cohortis et aedificii, Col. 2, 15, 8; cf. id. 1, 6, 24; 1, 5, 6: turbida nigro limo, Luc. 4, 311; Plin. 24, 19, 116, § 176.
          2. (β) Colluvio: colluvionibus sentinarum, Arn. 5, p. 172.
  2. II. More freq. trop., the impure conflux of different objects, dregs, impurities, impure mixture, vile medley, offscourings.
          1. (α) Colluvio: mixtorum omnis generis animantium, Liv. 3, 6, 3: cum ex hac turbā et colluvione discedam, Cic. Sen. 23, 85; cf. Non. p. 82, 9: o praeclarum diem, omnium scelerum, Cic. Sest. 7, 15: rerum, Liv. 3, 11, 5: deterrima verborum, Gell. 1, 15, 17: colluvionem gentium adferre, a polluting mixture, Liv. 4, 2, 5: mixti ex omni colluvione exsules obaerati, etc., id. 26, 40, 17; cf. id. 22, 43, 2: in colluvione Drusi, the dregs of the people adhering to him, the rabble, Cic. Vat. 9, 23; Cod. Th. 13, 3, 7: ordinum hominum, Curt. 10, 2, 6: sanguinis peregrini et servilis, Suet. Aug. 40; Plin. Ep. 5, 8, 11.
          2. (β) Colluvies, Atticus ap. Cic. Att. 9, 10, 7: rerum, Tac. H. 2, 16 fin.; cf. absol., id. A. 14, 15; 14, 44; id. H. 5, 12: nationum, id. A. 2, 55: collecta populi, Just. 2, 6, 4.