tystiolaethu

== Welsh == === Etymology === From tystiolaeth (“evidence, proof; testimony”) +‎ -u. === Pronunciation === (North Wales) IPA(key): /təsdjɔˈlaːɨ̯θɨ̞/, /təsdjɔˈleɨ̯θɨ̞/ (South Wales) IPA(key): /təsdjɔˈlai̯θɪ/, /təsdjɔˈlei̯θɪ/ === Verb === tystiolaethu (first-person singular present tystiolaethaf) to testify, to bear witness Synonym: tystio ==== Conjugation ==== === Mutation === === Further reading === R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke, et al., editors (1950–present), “tystiolaethu”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies