Etymology

incommensurable

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Today it means: having a ratio that is not expressible as a fraction of two integers. Full definition →

Middle French incommensurable ← Medieval Latin incommensurabilis
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The story

  1. Medieval Latin · derived fromincommensurabilis
  2. Middle French · borrowed fromincommensurable
  3. English todayincommensurable

From Middle French incommensurable, from Medieval Latin incommensurabilis. Its full etymology is equivalent to that of in- + commensurable.

Etymology from Wiktionary, CC BY-SA 4.0.