[1] The headword (presumably extracted from the quotation given) is present middle/passive participle of katataxe/w, masculine nominative plural; cf. kappa 811, kappa 812.
[2] Polybius fr. 170 Büttner-Wobst (context indeterminable). Büttner-Wobst notes (536) that Casaubon attributed this fragment to Polybius. Dindorf conjectured (ibid.) that tou= kairou= should be replaced by tw=n kairw=n (thus, by the circumstances). Also, Büttner-Wobst suggested that the fragment should read kathnagka/sqhsan: they were forced back (ibid.).