Yokefellow
From BiblePortal Wikipedia
Vine's Expository Dictionary of NT Words [1]
1: Σύζυγος (Strong'S #4805 — Adjective — sunzugos | suzugos — sood'-zoo-gos )
an adjective denoting "yoked together," is used as a noun in Philippians 4:3 , "a yokefellow, fellow laborer;" probably here it is a proper name, Synzygus, addressed as "true," or "genuine" (gnesios), i.e., "properly so-called."
Webster's Dictionary [2]
(n.) An associate or companion in, or as in; a mate; a fellow; especially, a partner in marriage.
Hastings' Dictionary of the Bible [3]
Yokefellow . See Synzygus.
Hastings' Dictionary of the New Testament [4]
See Synzygus.