πτωτικός

A. capable of inflexion, ἄρθρον ἐστὶ στοιχεῖον λόγου π. Diog.Bab.Stoic. 3.214; ὄνομά ἐστι μέρος λόγου π. D.T. 634.11, cf. A.D. Pron. 9.5, al.; τὸ π. τὸ "Σωκράτης" the case-form Σ., S.E. M. 8.84; connected with cases, π. σχῆμα, when several cases of the same Noun follow one another, Simp. in Cat. 359.9. Adv. ‐κῶς, ἀντωνυμίαι κάτωθεν μὲν π. κινοῦνται ἄνωθεν δὲ προσωπικῶς Choerob. in Theod. 2.418 H.

2. Math., πτωτικόν,τό, special case of a problem, Papp. 850.19, al.