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undercellar

American

[uhn-der-sel-er] / ˈʌn dərˌsɛl ər /

noun

a cellar beneath another cellar; subbasement.

Etymology

Origin of undercellar

First recorded in 1870–75; under- + cellar

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.