The story
Back-formation from commutation (in the late 19th century), as is commutator (noun) too.
Etymology from Wiktionary, CC BY-SA 4.0.
commutate
Today it means: To reverse the direction of (a current). Full definition →
Today it means: To reverse the direction of (a current). Full definition →
Back-formation from commutation (in the late 19th century), as is commutator (noun) too.
Etymology from Wiktionary, CC BY-SA 4.0.