Abbott-Smith Manual Greek Lexicon
οὐρά (G3769)
5 οὐρά , -ᾶς, ἡ , [in LXX for זָנָב ;] a tail : Re 9:10 , 19 12:4 .†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain
Strong's G3769 · Greek
οὐρά
oura · oo-rah'
apparently a primary word; a tail