The name rhymes with "frighten".
Source: https://dictionary.cambridge.org/pronunciation/english/crich...
Also a Source: Name is Scottish origin, I live in Scotland.
I mixed up German and English pronunciation of "ei". The German one sounds like English "i", so it would be Crighton.
I mixed up German and English pronunciation of "ei". The German one sounds like English "i", so it would be Crighton.