Go back on and Stab in the back

Go back on verb - Fail to fulfill a promise or obligation.

Stab in the back and go back on are semantically related in be disloyal topic. In some cases you can use "Stab in the back" instead a verb "Go back on".

Go back on and stab in the back are semantically related in attack unsuspecting person topic. Sometimes you can use "Go back on" instead a verb "Stab in the back".