tyngu

== Welsh == === Etymology === From Middle Welsh tygu, from Proto-Celtic *tungeti. === Pronunciation === (North Wales) IPA(key): /ˈtəŋɨ̞/ (South Wales) IPA(key): /ˈtəŋi/ Rhymes: -əŋɨ === Verb === tyngu (first-person singular present tyngaf) to swear (of an oath) ==== Conjugation ==== ==== Derived terms ==== tyngu'r du yn wyn (“to swear black is white”) tyngu i'r cyrs ac i'r coed (“to swear blind”) === Mutation === === Further reading === R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke, et al., editors (1950–present), “tyngu”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies