Abbott-Smith Manual Greek Lexicon
ὄφελος (G3786)
3 ὄφελος , -ους, τό ( ὀφέλλω , to increase ), [in LXX: Jb 15:3 ( יעל hi.)*;] advantage , help : I Co 15:32 , Ja 2:14 , 16 .†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain