an underground chamber or vault, as one under the main floor
of a church, often, esp. formerly, serving
as a burial place
Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by
Houghton Mifflin Harcourt. All rights reserved.
Word origin of 'crypt'ME cript < L crypta < Gr kryptē < kryptos, hidden < kryptein, to hide < IE *krubh- < base *kru-, to pile up, cover > OIr cráu, hut