Etymology

pumice

pum·ice
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Today it means: A light, porous type of pyroclastic igneous rock, formed during explosive volcanic eruptions when liquid lava is ejected into water or air as a froth containing masses of gas bubbles, which are frozen into the rock as the lava solidifies. Full definition →

Old French pomis ← Latin pūmex
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The story

  1. Latin · derived frompūmex“pumice stone”
  2. Old French · derived frompomis“pumice stone”
  3. English todaypumice

From Anglo-Norman and Old French pomis (“pumice stone”), from Latin pūmex (“pumice stone”). Doublet of pounce.

Words from the same roots

Latinpūmex all →

pounceponcif

Etymology from Wiktionary, CC BY-SA 4.0.