Pronounce Drow

 http://www.nerdovore.com/2015/09/the-proper-pronunciation-of-drow.html

Well, I guess I was accidentally right this whole time, originally saying it with a long O sound like snow, grow, etc. 

Personally I will use the idea that different languages/regions inside of dnd say it like that or like the ow/cow way. Keeps it interesting. 

Even Writers for modules… the two guys now at Goodman games… Chris Doyle the bald smiley fellow says it like cow and Rick Maffei the NY accent calm speaker guy says it like snow. Maffei makes it a point in this video I think, “50 greatest classic adventures of all time: adventures 35- 31” on yt, at time maybe time 30:00 or around there. Found it the episode before (39-36) when talking about g3 (against the giants) at time 42:50.

https://www.youtube.com/watch?v=tVMZm0bChVE

Ok not this one:

https://www.youtube.com/watch?v=-yUmwdXI1Ho

Historically-

It is apparently from Scottish then old English, dark elves hiding from the sun, attacking people from under bridges or caves. Root word is Dtrow, related to the word troll. 

Quote from the top blogger link…

Webster's Unabridged Dictionary (1970) states:

"Drow, n., [scot.]." The word is a variant of the Scots term "trow", which itself derives from the Scandinavian word "troll". The original Scottish Gaelic word is pronounced "dtrow" with a soft "dt" sound, and the original pronunciation sounds similar to "troll." The word is also found in Cornish and Welsh, with slight pronunciation differences. The race itself seems based on another dark elf, specifically the Dökkálfar of Norse mythology.

The word dtrow is also found in Old English, suggesting it was an universal word for dark elves on the British Isles

A commenter even claims Gygax said it as drow like snow.  See..

And I asked Gary Gygax at the 1985 Gen Con while signing my 1e Unearthed Arcana, and he pronounced then, as Drow as in grow or throw.