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permutation

/ˌpɜː.mjʊˈteɪ.ʃən/ noun

Latin root: permūtātiōnem Wiktionary

noun Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about permutation at Wordnik → Where our words come from →

  1. An event in which one thing is substituted for another.
    the replacement of lost blood by a transfusion of donor blood
  2. The act of changing the arrangement of a given number of elements.
  3. Complete change in character or condition.
    the permutations...taking place in the physical world

Origin

From Middle English permutacioun, permutacyoun, from Old French permutacïon, promutatïon and Medieval Latin permūtātiōnem, accusative of permūtātiō. Morphologically permute + -ation.

From Wiktionary, via Kaikki.org (CC BY-SA)