Lewis & Short

căcŏsynthĕton, i, n., = κακοσύνθετον; in rhet., an incorrect connection of words (as, e. g. Verg. A. 9, 610): quod male collocatum, id κακοσύνθετον Vocant, Quint. 8, 3, 59; cf. Don. p. 1771 P.; Charis. p. 243 ib.; Serv. ad Verg. l. l.; Isid. Orig. 1, 33, 12; Lucil. ap. Vel. Long. p. 2214 P.