Strong's G4801 — συζεύγνυμι (verb)
suzeugnumi (sood-zyoog'-noo-mee) v.
1. to yoke together
2. (figuratively) conjoin (in marriage)
[from G4862 and the base of G2201]
KJV: join together 
Root(s): G4862, G2201 
Hebrew root: ζεῦγος
Occurrences: 2