Not going to lie: this kind of rocked my world!
Here's a common misconception cleared up by Reader's Digest:
You never mean: Chaise loungeYou always mean: Chaise longueWhy: People have been getting this wrong for at least a century. The proper phrase is French and translates as "long chair".- From "How to Sound Smarter", 2/2010
For anyone who has ever used a chaise longue, you know it's almost impossible to resist the urge to lounge in it. So I can see how the confusion started!
Oh, comfy half chair/half couch, I am not even sure how to pronounce your name anymore!