Etymology

porous

P3O1R1O1U1S1

Today it means: Full of tiny pores that allow fluids or gasses to pass through. Full definition →

Old French poros ← Latin porus
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The story

  1. Latin · derived fromporus“an opening”
  2. Old French · derived fromporos
  3. English todayporous

From Old French poros, from Latin porus (“an opening”). By surface analysis, pore + -ous.

Words from the same roots

Latinporus all →

poremadreporeporiform

Etymology from Wiktionary, CC BY-SA 4.0.