πτέρυξ, -υγος, ἡ (< πέτομαι), [in LXX chiefly for כָּנָף ;] a wing: of birds, Refs Mat.23:37, Luk.13:34, Rev.12:14; of creatures seen in a vision, Refs Rev.4:8 9:9.† (AS)
Thayer:
1) a wing: of birds
πτέρυξ
pterux
pter'-oox
From a derivative of G4072 (meaning a feather); a wing
πέτομαι, πετάομαι, πτάομαι
petomai petaomai ptaomai
pet'-om-ahee,pet-ah'-om-ahee,ptah'-om-ahee
Including the prolonged form (second form) and contraction (third form) of the middle voice of a primary verb; to fly
KJV Usage: fly (-ing).
G1600 ἐκπετάννυμιἐκπετάννυμι
ekpetannumi
ek-pet-an'-noo-mee
From G1537 and a form of G4072; to flyout, that is, (by analogy) extend
KJV Usage: stretch forth.
G2665 καταπέτασμακαταπέτασμα
katapetasma
kat-ap-et'-as-mah
From a compound of G2596 and a congener of G4072; something spreadthoroughly, that is, (specifically) the door screen (to the Most Holy Place) in the Jewish Temple
KJV Usage: vail.
G4071 πετεινόνπετεινόν
peteinon
pet-i-non'
Neuter of a derivative of G4072; a flying animal, that is, bird
KJV Usage: bird, fowl.
G4098 πίπτω, πέτωπίπτω, πέτω
piptō petō
pip'-to,pet'-o
The first is a reduplicated and contracted form of the second (which occurs only as an alternate in certain tenses); probably akin to G4072 through the idea of alighting; to fall (literally of figuratively)
KJV Usage: fail, fall (down), light on.
G4422 πτοέωπτοέω
ptoeō
pto-eh'-o
Probably akin to the alternate of G4098 (through the idea of causing to fall) or to G4072 (through that of causing to fly away); to scare
KJV Usage: frighten.
G4428 πτύσσωπτύσσω
ptussō
ptoos'-so
Probably akin to πετάννυμι petannumi (to spread; and thus apparently allied to G4072 through the idea of expansion, and to G4429 through that of flattening; compare G3961); to fold, that is, furl a scroll