From Old Cornish guid, from Proto-Celtic *wēt(t)ā (“swamp, stream”), probably from Proto-Indo-European *weyh₁- (“to wither”), see also Latin viēscō (“wither”), Lithuanian výsti (“wither”), Old High German wesanēn (“wither, wilt”) and Old Norse visna.
gwythi f (singulative gwythien)
Plural of earlier gŵyth f, from Proto-Celtic *wēt(t)ā (“swamp, stream”), probably from Proto-Indo-European *weyh₁- (“to wither”).
gwythi f (collective, singulative gwythïen)
gwythi m pl
Welsh mutation | |||
---|---|---|---|
radical | soft | nasal | aspirate |
gwythi | wythi | ngwythi | unchanged |
Note: Some of these forms may be hypothetical. Not every possible mutated form of every word actually occurs. |
R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke et al., editors (1950–present), “gwythi”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies