cavern
ca·vern
noun
verb
Origin
From Middle English caverne, borrowing from Old French caverne, from Latin caverna (“hollow, cavity, cave”), from cavus (“hollow, excavated, concave”).
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WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.