A Scottish riddle, published 1881 in Notes on the Folk-lore of the North-east of Scotland (Folk-lore Society). As far as I can tell it doesn’t seem to have been noticed in the assiduous search for the origin of the word “Hobbit”…

Q: “Hobbity-bobbity sits on this side o’ the burn, Hobbity-bobbity sits on that side o’ the burn, An gehn ye touch hobbity-bobbity, Hobbity-bobbity ‘ill bite you ?”

A: “A nettle.”