The headword (attested only here but evidently quoted from somewhere) is the perfect passive participle, feminine nominative singular, of the compound verb kataloa/w.
The equivalent masculine form kathlohme/nos appears in Lucian, Icaromenippus 15, where the glosses of the scholia include the masculine equivalent of the present gloss (schol. Luc. 104.11 Rabe). See also Hesychius kappa1759: kathlo/kistai: katate/triptai.