gwallgofrwydd

== Welsh == === Etymology === gwallgof (“mad, insane”) +‎ -rwydd. === Pronunciation === (North Wales) IPA(key): /ɡwaɬˈɡɔvrʊɨ̯d/ (South Wales) IPA(key): /ɡwaɬˈɡɔvrʊi̯d/ === Noun === gwallgofrwydd m (uncountable) madness, insanity Synonyms: gorffwylltra, amhwylledd, lloerigrwydd fanaticism Synonym: penboethni === Mutation === === Further reading === D. G. Lewis, N. Lewis, editors (2005–present), “gwallgofrwydd”, in Gweiadur: the Welsh–English Dictionary, Gwerin R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke, et al., editors (1950–present), “gwallgofrwydd”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies