Timbral Pronunciations

I remember having an argument about the pronunciation of timbre. I'll admit that I had only read the term up to that point in my life (I think I was 18 or 19, believe it or not!), and I read it as TIM BRRRR, and not as TAM BOUR. My good friend, and the drummer in my band, informed me I was wrong. I didn't accept it initially. But eventually I did, and I now happily correct anyone who says it wrong.