What is the impact of this going to be?

[Liamxtype]

We used to have a dog called cookie. His name was actually Cruachan,

Pronounced as "crew a kawn" by any chance? named after the mountain?

[MarillionFan]

Pronounced as "crew a kawn" by any chance? named after the mountain?

Crewkerne?

[mudskipper]

Crewkerne?

You need the clearing throat gggh in the middle. Or you could just go with Cookie.

[norrahe]

Pronounced as "crew a kawn" by any chance? named after the mountain?

Near enough, depends on whether it is Scots or Irish Gaelic, in the latter case the last a would be accented and therefore elongated.

So you've either named your dog after the ancient capital of Connacht or a mountain in Scotland??

[mudskipper]

Not me - my parents. Scotland.