From the Slate?

It's a literal translation from Dutch "van der lei". Oddly enough, the name "Vanderlei" is a very common first name in Brazil. Just have a look at all the people with that name who are famous enough to be on Wikipedia. And that does not include yours truly. So some random Brazilan dude snatched up vanderlei.blogspot.com way back in 2005. Apparently, my Dutch ancestors made quite a name for themselves while plundering Brazil way back in the 1600s. That might explain why my great grandfather was nicknamed "Xingu."