commutate

verb
com·mu·tate | \ˈkäm-yə-ˌtāt, -yü-\
commutated; commutating

Definition of commutate 

transitive verb

: to reverse every other half cycle of (an alternating current) so as to form a direct current

First Known Use of commutate

1890, in the meaning defined above

History and Etymology for commutate

back-formation from commutation

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The first known use of commutate was in 1890

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