Wow! That's really interesting - I remember reading it from some serious authority (possibly Kathryn Lindskoog, author of The Lion of Judah in Never-Never Land) that aslan was "Persian" for lion, and since Persia=Iran and Iranians speak Farsi, I thought that would be it. Furthermore, I'm reading the adventures of an Englishman in central Asia in the early 1800s, and he relates how a warlord in that area called himself "Aslan {something}" - clearly "The Lion". But meimon isn't a bit like aslan, so I guess that isn't much help.
btw, I've been meaning to ask - what's a "water hog"?