Word: derate
Part of speech: Verb
Syllables: de
rate
Definition: To lower the rated capability of any rated equipment or material.
Morphemes:
Affix: de-
Language: en
PoS: Prefix
Meaning: Intensifying; make more intense, stronger, or more marked; 
Etymology Compounds: Affix: dē-
Language: la
Decoded: de-
PoS: Prefix
Meaning: de-
Affix: rate
Language: en
PoS: Verb
Meaning: To determine the limits of safe functioning for a machine or electrical device.
Etymology Compounds: Affix: raten
Language: enm
Decoded: raten
Meaning: to scold, chide