καθάπαξ · kathapax — LSJ
once for all, out-and-out, absolutely, at all, once, in a single case, singly
once for all, Od. 21.349, D. 18.231, Phld. D. 3 Fr. 23, Jul. Or. 2.70c; out-and-out, absolutely, οἱ κ. ἐχθροί D. 18.197; κ. ἄτιμος γέγονεν Id. 21.87, cf. 25.30; κ. σπουδαῖος, opp. κατά τι, Phld. Po. 5.16, cf. Ph. 2.6; opp. πρός τι, Archig. ap. Gal. 8.626; οἱ κ. μὴ συναπ τόμενοι not at all, Ocell. 4.4; οὕτω κ. πέπρακεν ἑαυτόν D. 19.118; οὐδὲ κ. not even once, Plb. 1.2.6, 1.20.12, etc.; οὐδὲ τὸ κ. S.E. M. 11.97; πάντως δʼ, οὐ κ. not merely in a single case, Demetr.Lac. Herc. 1055.22; singly, Plb.
II each time
each time, = ἑκάστοτε, PMag.Par. 1.326.