From the root of zeugnumi (to join, especially by a "yoke"); a coupling, i.e. (figuratively) servitude (a law or obligation); also (literally) the beam of the balance (as connecting the scales)pair of balances, yoke.
Textus Receptus Greek Text
zugonMatt 11:29, Acts 15:10, 1 Ti 6:1, Rev 6:5
zugoVMatt 11:30
zugwGal 5:1