rhaeadr

== Welsh == === Etymology === Inherited from Middle Welsh raeadyr, from Old Welsh reatir, from Proto-Celtic *reyatrom (compare Old Irish ríathor), from Proto-Indo-European *h₃reyH- (“to flow”). More at rhewyn. === Pronunciation === (North Wales) IPA(key): /ˈr̥eɨ̯.adr/, [ˈr̥ʰeɨ̯.adr̩] (South Wales) IPA(key): /ˈr̥ei̯.adr/, [ˈr̥ʰei̯.adr̩] === Noun === rhaeadr f (plural rhaeadrau or rhëydr) waterfall, cascade, rapids ==== Synonyms ==== pistyll sgwd === Mutation === === Further reading === D. G. Lewis, N. Lewis, editors (2005–present), “rhaeadr”, in Gweiadur: the Welsh–English Dictionary, Gwerin R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke, et al., editors (1950–present), “rhaeadr”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies