Etymology

bilious

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Today it means: Of or pertaining to something containing or consisting of bile. Full definition →

French bilieux ← Latin bīliōsus
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The story

  1. Latin · derived frombīliōsus“full of bile”
  2. French · derived frombilieux
  3. English todaybilious

From French bilieux, from Latin bīliōsus (“full of bile”), from bīlis (“bile”) + -ōsus (“full of”).

Etymology from Wiktionary, CC BY-SA 4.0.