Derates vs Demates - What's the difference?

As verbs the difference between derates and demates

is that derates is third-person singular of derate while demates is third-person singular of demate.

(head)

(derate)

* * * * * *

(derat)

To lower the rated capability of any rated equipment or material.

The derated engine sold at a lower price, but had the same components as the standard model.

* * * *

(head)

(demate)

(Mate-Demate Device)

(demat)

(aerospace) To move (a space shuttle orbiter) off the back of an aircraft that can carry it.

* mate