"Drow-gr". We're in Skyrim, after all. In my native Scandinavian language, "au" is a diphthong and pronounced "ow", not "aw".
You can hear Farkas say 'Draw-ger' during the Companions quest where you venture into a tomb with him as well.
Yes, but during the Korvanjund quest, the Stormcloaks say "Drow-ger". Guess there are different ways of saying it, like "daedra" and "deedra" in Oblivion.