Ramble: [Probably from Middle Dutch *rammelen, to wander about in a state of
sexual desire, from rammen, to copulate with.]

From AWAD, 4/25/2000.
http:// http://wordsmith.org/awad/archives/0400, about three quarters of the way down the page.

Shoot, I guess to read the whole thing, you'll have to Search AWAD--the link doesn't work.