Mayelana nokuqoshiwe kwe-isi-Welsh
Isi-Welsh sibhalwa ngesipelingi saso, lapho u-w no-y bengonkamisa futhi kuvela u-ŵ no-ŷ. Amagama esi-Welsh ashintsha uhlamvu lwawo lokuqala (mutation), futhi umbhalo orekhodiwe ulandela inkulumo. Ukushintshashintsha phakathi kwesi-Welsh nesiNgisi kuvamile futhi kugcinwa ngendlela okukhulunywe ngayo.