Derated vs Deratted - What's the difference?

As verbs the difference between derated and deratted

is that derated is past tense of derate while deratted is past tense of derat.

(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)

(derat)

To remove the rats from something.