"Rest in peace" is "Gorffwys mewn hedd".
'(May they) rest in peace' would be:Corffwys mewn heddorYn gorffwys mewn hedd.
Gorffwys mewn hedd
Gorffwys mewn hedd nain a taid. (northern Welsh) Gorffwys mewn hedd mamgu a tadcu. (souther Welsh)
Heddwch is peace in welsh
The Welsh word for "peace" is pronounced "heddwch." It is phonetically pronounced as "heth-oo-ch."
welsh = tŷ o heddwch
Rest in peace
peace and happines
Thlalani Gahle
samadhanathil vishramikuvin = Rest in Peace
Rest in Peace - usually on a headstone at a grave in computers it stands for routing information protocol EDIT: You are both wrong, Rest in Peace is just what English speakers say to make it fit, in reality it means Requiescat in Pace, which in Latin means, May he/she lay in peace. But close, and nice job on the computer information.