requiescat (n.)youdaoicibaDictYouDict[requiescat 词源字典]
name of a prayer for the repose of the dead, from Latin phrase requiescat in pace (often abbreviated R.I.P.), literally "may he (or she) begin to rest in peace," from third person singular inceptive of requies "rest, repose" (see requiem).[requiescat etymology, requiescat origin, 英语词源]