Deque is a rather silly name -- and it's even sillier that it needs to come with a pronunciation guide.
People seem to be split into two camps about it: "d.q." and "deck" are both popular, and in fact "d.q." might be the usual way to say it. Just look at these three Twitter polls:
I dislike seeing people incorrecting each other on how to pronounce this -- it smells a bit like gatekeeping to me. (The single correct pronunciation is obviously "da qway".)
What if we renamed
Deque to something less ridiculous, like, I don't know,