This name is a combination of “Kangaroo” and “Deja-vu”. A kangaroo is an Australian marsupial, that is known for it’s leaping and powerful tail. Deja vu is the feeling that one has already been through an experience before. The Dejaroo is a kangaroo-like creature with wings, making the “roo” part explainable. As for the prefix, we can only guess. (Have you ever felt like you've seen a winged kangaroo before?)
