Illustrated Companion to the Latin Dictionary/Hypogeum

This article incorporates text from a publication now in the public domain: Rich, Anthony (1849). The illustrated companion to the Latin dictionary, and Greek lexicon. p. vi. OCLC 894670115. https://archive.org/details/illustratedcompa00rich. 

HYPOGE'UM (ὑπόγειον). That part of a building which lies below the level of the ground (Vitruv. vi. 8.); whence a subterranean vault in which the Greeks buried their dead without burning the body (Pet. Sat. iii. 2.); consequently, corresponding with the Roman CONDITORIUM.