Strong's #3685: oninemi (pronounced on-in'-ay-mee)
a prolonged form of an apparently primary verb (onomai, to slur); for which another prolonged form (onao) is used as an alternate in some tenses (unless indeed it be identical with the base of 3686 through the idea of notoriety); to gratify, i.e. (middle voice) to derive pleasure or advantage from:--have joy.
Thayer's Greek Lexicon:
̓́
oninēmi
1) to be useful, to profit, help
2) to receive profit or advantage, be helped [or have joy]
Part of Speech: verb
Relation: a prolonged form of an apparently primary verb (onomai, to slur), for which another prolonged form (onao) is used as an alternate in some tenses [unless indeed it be identical with the base of G3686 through the idea of notoriety]
Usage:
This word is used 1 times:
Philemon 1:20: "Yea, brother, let me have joy of thee in the Lord: refresh"