argyfyngus

== Welsh == === Etymology === From argyfwng +‎ -us. === Pronunciation === (North Wales) IPA(key): /ˌarɡəˈvəŋɨ̞s/ (South Wales) IPA(key): /ˌarɡəˈvəŋɪs/ === Adjective === argyfyngus (feminine singular argyfyngus, plural argyfyngus, not comparable) critical (pertaining to or indicating a crisis) === Mutation === === Further reading === R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke, et al., editors (1950–present), “argyfyngus”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies