Abbott-Smith Manual Greek Lexicon
πτῶσις (G4431)
2 πτῶσις , -εως, ἡ ( πίπτω ), [in LXX chiefly for נֶגֶף , מַפֶּלֶת , and cogn. forms;] a falling , fall (Plat., Plut., al.): Mt 7:27 ; metaph., Lk 2:34 .†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain