/pik"see/ , n.
1. a fairy or sprite, esp. a mischievous one.
2. a small, pert, or mischievous person.
adj.
3. Also, pixieish, pixyish . playfully impish or mischievous; prankish: pixie mood; a pixie sense of humor.
[ 1620-30; orig. dial. (SW England) pixy, pigsy, pisky; orig. uncert. ]