souterrain

[ soo-tuh-reyn, soo-tuh-reyn ]
/ ˌsu təˈreɪn, ˈsu təˌreɪn /

noun Chiefly Archaeology.

a subterranean passage or structure; grotto.

Origin of souterrain

1725–35; < French: literally, underground, calque of Latin subterrāneus; see sous-sous, terrain
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for souterrain

British Dictionary definitions for souterrain

souterrain
/ (ˈsuːtəˌreɪn) /

noun

archaeol an underground chamber or passage

Word Origin for souterrain

C18: from French
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012