Definition of commutation noun from the Oxford Advanced Learner's Dictionary



    BrE BrE//ˌkɒmjuˈteɪʃn//
    ; NAmE NAmE//ˌkɑːmjuˈteɪʃn//
    [countable, uncountable]
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  1. 1(law) the act of making a punishment less severe a commutation of the death sentence to life imprisonment
  2. 2(finance) the act of replacing one method of payment with another; a payment that is replaced with another
  3. Word Originlate Middle English (in the sense ‘exchange, barter’, later ‘alteration’): from Latin commutatio(n-), from commutare ‘exchange, interchange’ from com- ‘altogether’ + mutare ‘to change’. Sense (1) dates from the late 16th cent.
See the Oxford Advanced American Dictionary entry: commutation