Thread:ChishioKunrin/@comment-26397825-20160516204412

Maybe it's just because I'm a medieval reenactor, so that kind of gets to me, but curtsy is just the modern English screw around with curtsy. The original form of the word is courtesy.

So I suppose technically they're both right, but as a hobby-historian courtesy is the way I know it, and the original way fo saying it. 