It's pronounced Mare-wen, basically. Like the female horse plus the word when. I've never heard of any of those other names before, though. I've heard of Marvin/Mervin but not those.
Searching Behind the Name shows me that Marwin is the German form of Marvin, and it's pronounced Mar-veen.
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Date: 2008-11-16 09:41 pm (UTC)Searching Behind the Name shows me that Marwin is the German form of Marvin, and it's pronounced Mar-veen.