A prayer for the repose of the souls of the dead.
Origin of requiescatLatin requiēscat, third person sing. present subjunctive of requiēscere, to rest : re-, re- + quiēscere, to rest; see kwei&schwa;- in Indo-European roots.
First word of the Latin phrase requiÄ“scat in pÄce (“may he/she rest in peace"). The Latin word requiÄ“scat means "he may rest" and is a form of the Latin verb requiÄ“scÅ (“I rest, I repose").