Abbott-Smith Manual Greek Lexicon
πτηνός (G4421)
1 ** πτηνός , -ή, -όν ( πέτομαι ), [in Aq.: Jb 5:7 *;] winged ; as subst., τὰ π. , birds : I Co 15:39 .†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain
Strong's G4421 · Greek
πτηνόν
ptenon · ptay-non'
contraction for 4071; a bird