Etymology

expansion

ex·pan·sion
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Today it means: An act, process, or instance of expanding. Full definition →

French expansion ← Latin expānsiō
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The story

  1. Latin · derived fromexpānsiō
  2. French · borrowed fromexpansion
  3. English todayexpansion

Borrowed from French expansion, from Latin expānsiō. By surface analysis, expand + -sion.

Etymology from Wiktionary, CC BY-SA 4.0.