cnau'r Ysbaen

== Welsh == === Etymology === Literally, “nuts of Spain”. === Noun === cnau'r Ysbaen (plural, singular cneuen yr Ysbaen f) hazelnuts ==== Synonyms ==== cnau cyll === Mutation === === Further reading === R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke, et al., editors (1950–present), “cnaur Ysbaen”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies