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mortsafe

British  
/ ˈmɔːtˌseɪf /

noun

  1. a heavy iron cage or grille placed over the grave of a newly deceased person during the 19th century in order to deter body snatchers

"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

Etymology

Origin of mortsafe

C19: from mort dead body (via Old French from Latin mors death) + safe