Lexical Definition

‎πτῶσις‎ ptōsis (pto'-sis) fall G:N-F
from the alternate of ‎πίπτω‎

fall.

Usage: 9 forms in 21 verses
Form Translated As     In Verse(s)
πτῶσισ fall Matt.7.27
πτῶσιν falling Luke.2.34
πτώσισ a failure LXX.Exod.30.12
blow LXX.Ps.106.29
downfall LXX.Zech.14.12 • LXX.Zech.14.15 • LXX.Zech.14.18
πτώσιν αυτού his downfall LXX.Ezek.31.13
πτώσιν a downfall LXX.Isa.17.1
their downfall LXX.Ezek.32.10
this downfall LXX.Zech.14.15
πτώσεώσ σου of your downfall LXX.Ezek.32.10
πτώσεώσ of your downfall LXX.Ezek.27.27
πτώσεωσ blow LXX.Isa.51.17 • LXX.Isa.51.22
downfall LXX.Nah.3.3
of his downfall LXX.Ezek.31.16
of their downfall LXX.Jer.49.21
of your downfall LXX.Ezek.26.15 • LXX.Ezek.26.18
πτώσει their downfall LXX.Jer.6.15

Abbott-Smith

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.†

Abbott-Smith References

Book Refs
Matthew 7:27
Luke 2:34

Liddell-Scott-Jones

πτῶσις, εως, ἡ,

(πίπτω, πέ-πτωκα) falling, fall, κύβων [Refs 5th c.BC+]: absolutely, calamity, ἐν καιρῷ πτώσεως [LXX+5th c.AD+]; death, [Refs 6th c.AD+]

__II Grammars, mode or modification of a word, [Refs 4th c.BC+]; applied to cases, including nominative,[Refs]: to superlative of adjectives, [Refs]: so by the Stoics to variety of flexion, [Refs]., title of work by Chrysipp.,[Refs 2nd c.BC+]; κατὰ μίαν πτῶσιν indeclinable, [Refs 2nd c.AD+]
__III in the Logic of [Refs 4th c.BC+], mood of syllogisms, [Refs]
__III.b arrangement of terms in a syllogism, [Refs]

LSJ Scripture Refs: LXX.Exod.30.12