briallu'r cŵn

== Welsh == === Etymology === From briallu (“primroses”) and cŵn (“dogs”). === Noun === briallu'r cŵn (plural, singular briallen y cŵn f) dog roses (Rosa canina) Synonyms: rhosynnau'r cŵn, rhosynnau bwci === Mutation === === References === R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke, et al., editors (1950–present), “briallu”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies