rheiddio

== Welsh == === Etymology === From rhaidd (“ray, beam”) +‎ -io. === Pronunciation === IPA(key): /ˈr̥ei̯ðjɔ/ === Verb === rheiddio (first-person singular present rheiddiaf) to beam, to radiate ==== Conjugation ==== === Mutation === === Further reading === R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke, et al., editors (1950–present), “rheiddio”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies