Extended Strong's Greek Lexicon (Abbott-Smith based)
yokefellow
Usage: σύν-ζυγος (Rec. ουζ-), or as WH, mg., Σύνζυγος, -ον (συνζεύγνυμι), [in Aq., Eze.23:21 * ;] a yoke fellow. Prob., as proper name, Σ. γνήσιε, genuinely Synzygus, S. properly so-called, Php.4:3 (see ICC, Lft., in l; MM, xxiii).† (AS)