tyngu'r du yn wyn

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Welsh[edit]

Alternative forms[edit]

Pronunciation[edit]

Idiom[edit]

tyngu'r du yn wyn

  1. (idiomatic) to swear black is white, to insist that something false is true.

References[edit]

  • 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