cyfeiriwr

== Welsh == === Noun === cyfeiriwr m (plural cyfeirwyr) director ruler, governor indicator, turn signal === Mutation === === Further reading === R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke, et al., editors (1950–present), “cyfeiriwr”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies