heddwch i'w lwch

== Welsh == === Etymology === Literally, “peace to his dust”. === Phrase === heddwch i'w lwch (f …i'w llwch) rest in peace === Further reading === R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke, et al., editors (1950–present), “heddwch i'w lwch”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies