G4431
πτῶσις
fall
πτῶσις, -εως, ἡ (πίπτω), [in LXX chiefly for נֶגֶף, מַפֶּלֶת, and cogn. forms ;] a falling, fall (Plat., Plut., al.): Mat.7:27; metaphorically, Luk.2:34.† (AS)
The KJV translates G4431 in the following manner:
fall (4x)
Full Thayer's lexicon entry
πτῶσις — ptōsis
πτῶσις, πτώσεως, ἡ (πίπτω, perfect πέπτωκα), a falling, downfall: properly, τῆς οἰκίας, Mat 7:27 (πτωσεις οἴκων, Manetho, 4, 617); tropically, εἰς πτῶσιν πολλῶν (opposed to εἰς ἀνάστασιν), that many may fall and bring upon themselves ruin, i. e. the loss of salvation, utter misery, Luk 2:34, cf. Rom 11:11. (The Sept. chiefly for מַגֵּפָה, plague, defeat.)
2 occurrences
Matthew (1), Luke (1)