treiglad caled

== Welsh == === Noun === treiglad caled m (plural treigladau caled or treigladau caledion) (linguistics, countable) hard mutation, provection, fortition ==== Notes ==== The hard mutation is common as an initial mutation in Cornish and Breton, but only occurs word-internally in Welsh, as in: Old English bedhūs (“bedehouse”) → betws (“chapel”) defaid (“sheep (pl.)”), tŷ (“house, dwelling”) → defeity (“sheepfold”) pob (“every”) + peth (“thing”) → popeth (“everything”) pobi (“to bake”) + tŷ (“house, dwelling”) → popty (“oven”) teg (“fair”) + -ach (“-er”) → tecach (“fairer”) ==== Related terms ==== treiglad llaes (“aspirate mutation”) treiglad meddal (“soft mutation”) treiglad trwynol (“nasal mutation”) treiglo (“to mutate”) === Mutation === === References === R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke, et al., editors (1950–present), “treiglad caled”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies