Etymology

orexin

O1R1E1X8I1N1

Today it means: Either of two neuropeptide hormones found in vertebrates; the two are orexin-A and orexin-B. Full definition →

Ancient Greek ὄρεξις
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The story

  1. Ancient Greek · derived fromὄρεξις“appetite”
  2. English todayorexin

From Ancient Greek ὄρεξις (órexis, “appetite”) + -in.

Words from the same roots

Ancient Greekὄρεξις all →

-orexiaorexigenicorexis

Etymology from Wiktionary, CC BY-SA 4.0.