ὀνομ-αστικός · onom-astikos — LSJ
skilful at naming, Pl. Cra. 424a ; of or belonging to naming, hence ἡ τέχνη ἡ ὀνομαστική ib. 423d ; ἡ -κή alone, ib. 425a.
ἡ -κή (sc. πτῶσις) the nominative case, Str. 14.1.41, D.T. 636.5, A.D. Synt. 107.4 (pl.).
τὸ -κόν (sc. βιβλίον) vocabulary, arranged acc. to the subjects, and not alphabetically as in a λεξικόν, such as the work of Jul. Pollux : -κά, τά, title of work by Democr. (Fr. 26a).
Adv. -κῶς by a special name, Ath. 14.646a ; in the nominative case, Hermog. Inv. 4.4.