On 3 May 2007 21:27:43 -0700, Chuck Gould
wrote:

(OK, interjecting here for a moment..who the heck would name their
daughter "Dimmy" and who would marry such a woman?)

Dimmy is a very popular name - Russian, Polish, Latvian and I've even
known a Dimmy Greek.

It's short for any number of names.