Etymology: German Narzissismus, from Narziss; Narcissus, from Latin Narcissus
1: Excessive love or admiration of oneself; conceit
2: A psychological condition characterized by self-preoccupation, lack of empathy, and unconscious deficits in self-esteem
From Merriam-Webster Online:
Etymology: New Latin, from Late Latin, plural, upper abdomen (formerly regarded as the seat of hypochondria), from Greek, literally, the parts under the cartilage (of the breastbone), from hypo- + chondros cartilage
1: extreme depression of mind or spirits often centered on imaginary physical ailments; specifically: hypochondriasis
From Rei Nakazawa, Magic creative text writer:
Etymology: Both of the major new species introduced in Odyssey are named after the type of animal they're based on. "Aven," of course, comes from the word avian, as in bird. "Cephalid" is derived in much the same way from cephalopod, which is the class of animal that includes squid, cuttlefish, and octopi.