Abbott-Smith Manual Greek Lexicon
κενῶς (G2761)
1 κενῶς , adv. , [in LXX: Is 49:4 ( לְרִיק )*;] in vain , to no purpose : Ja 4:5 .†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain
Strong's G2761 · Greek
κενῶς
kenos · ken-oce'
adverb from 2756; vainly, i.e. to no purpose