goruchafiaeth

== Welsh == === Etymology === From goruchaf (“highest, supreme”) +‎ -iaeth. === Noun === goruchafiaeth f (plural goruchafiaethau) supremacy, dominion, superiority, predominance Synonyms: uchafiaeth, arglwyddiaeth, meistrolaeth, awdurdod, rhagorfraint, buddugoliaeth, rhagoriaeth preferment, promotion Synonyms: dyrchafiad, cofiad, blaenoriaeth === Mutation === === Further reading === R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke, et al., editors (1950–present), “goruchafiaeth”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies