gylfin

== Welsh == === Etymology === From Proto-Brythonic *gülβin, from Proto-Celtic *gulbīnos. Cognate with Cornish gelvin and Old Irish gulban. === Pronunciation === IPA(key): /ˈɡəlvɪn/ === Noun === gylfin m (plural gylfinau) bird's beak, bill Synonym: pig ==== Derived terms ==== gylfin groes (“crossbill”) gylfinbraff (“hawfinch”) gylfinddu (“black-beaked”) gylfinir, gylfinog (“curlew”) === Mutation === === Further reading === D. G. Lewis, N. Lewis, editors (2005–present), “gylfin”, in Gweiadur: the Welsh–English Dictionary, Gwerin R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke, et al., editors (1950–present), “gylfin”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies