SarahRose said:
I always believed it was "thawth" but when I read it I can't help but hear "thoeth" in my head, lol. I guess the latter is correct? I just don't want to utter it aloud and sound stupid, lol.
I would say that, in contemporary English, both are correct.
"Thoeth" (rhymes with "both") is closer to how Europeans and Egyptologists say the name ("tote" is how they say it; both "t"s are just a little aspirated, "t'hot'h"). This has to be how members of the Golden Dawn, like Crowley, said it.
"Thawth" is how most owners of the Thoth deck in North America (I don't know the English or Australian pronunciation) say it. It is a natural way to pronounce this series of letters in English. And it is current enough that it should be regarded as an accepted usage.
So, if you want to sound different from the average, and maybe cause a few quizzical looks in your direction, say the "educated" pronunciation. Also, if you are a stickler for historical accuracy, use this pronunciation. And, it seems that you had it right with "thoeth" more-or-less already - so go with your instinct.
My best friend has a Thoth as well, and doesn't know how to pronounce it. The girl at the New Age Shop (who was very well-versed in Tarot) wasn't sure either!
Netzach noted this page -
http://www.bartleby.com/61/6/T0180600.html