noun

1. an underground chamber or vault, as one under the main floor of a church, often, esp. formerly, serving as a burial place
2. Anat. any of various recesses, glandular cavities, or follicles in the body

Etymology: ME cript < L crypta < Gr kryptē < kryptos, hidden < kryptein, to hide < IE *krubh- < base *kru-, to pile up, cover > OIr cráu, hut