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requiescat

American  
[rek-wee-es-kaht, -kat] / ˌrɛk wiˈɛs kɑt, -kæt /

noun

  1. a wish or prayer for the repose of the dead.


requiescat British  
/ ˌrɛkwɪˈɛskæt /

noun

  1. a prayer for the repose of the souls of the dead

"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 requiescat

1815–25; < Latin: short for requiescat in pace