ENGLISH
REFERENCE

commutation

n.
US //ˌkɑmjəˈteɪʃən// UK //kˌɒmjuːtˈeɪʃən// com·mu·ta·tion Archaic Dialect Formal
Synonyms
Etymology 1

From French commutation, from Latin commūtātiōnem, accusative singular of commūtātiō.

Etymology 2

From commute + -ation.

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