Coleslaw the Czech way

My wife's sister-in-law, who is Czech, pronounces coleslaw like Koleslav, in English notation roughly /koh-les-lahf/, as if it were a Slavic name, similar to Ladislav, Bronislav, Vladislav, etc. She says that is how every server in Prague restaurants says the word. I can't help but smile or even laugh when I hear her say it.