Same or similar entry in other lexica; see the references at Photius kappa28, where Theodoridis regards the headword -- third person singular, future indicative active, of kate/xw (for which see also kappa 1001, kappa 1002, kappa 1026, kappa 1027) -- as quoted from Homer (e.g. Iliad 15.186).
NB: the headword could have been the dative singular of the related feminine noun kaqe/cis (see Hesychius s.v. e)n kaqe/cei), but is not glossed thus.