I was looking at our work menu today and found 'lamb ragout'. I was like: "Lamb rag out? That sounds awful - what's that?"
I was promptly advised it was pronounced 'ragoo' and I felt a bit stupid. Why ragout is spelt with a T I don't know - it's a waste of a letter and only causes confusion.
I suppose the 'T' helps differentiate ragout from Ragú pasta sauce. Or Raghu, the Hindu King.