Welsh is a completely different language, with its own writing system. dd → th, ff → f, ll → hl (ish), w → oo gets you most of the way to being understood as a

Welsh is a completely different language, with its own writing system. dd → th, ff → f, ll → hl (ish), w → oo gets you most of the way to being understood as a tourist, in my experience. (Though I'm British, so I've heard many of the larger Welsh place names pronounced properly since childhood, via TV/radio etc.) https://en.wikipedia.org/wiki/Welsh_orthography#Letter_names_and_sound_values https://en.wikipedia.org/wiki/Welsh_orthography#Letter_names...