ngwystl

Welsh

(North Wales) IPA^(key): /ŋwɨ̞sdl/, [ˈŋwɨ̞stl̩ˠ]
(South Wales, standard, colloquial) IPA^(key): /ŋʊi̯sdl/, [ˈŋʊi̯stl̩], /ŋwɪsdl/, [ˈŋwɪstl̩]
- (South Wales, colloquial) IPA^(key): /ˈŋʊi̯sdɪl/, [ˈŋʊi̯stɪl], /ˈŋwɪsdɪl/, [ˈŋʊi̯stɪl]

ngwystl

Welsh mutation
radical	soft	nasal	aspirate
gwystl	wystl	ngwystl	unchanged
Note: Some of these forms may be hypothetical. Not every possible mutated form of every word actually occurs.