noun
1Lack of power; impotence; an instance of this.
2 rare Something which is not a power; something (in later use especially a state) which lacks power.
adjective
(attributive). That is not concerned with power; especially that does not use or involve electrical (nuclear, etc.) power.
Origin
Late Middle English; earliest use found in John Trevisa (c1342–?1402), translator. From non- + power, originally after Anglo-Norman nounpower, Old French nonpooir.
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