hypochondria
Pronunciation: "hI-p&-'kän-drE-&
Function: noun
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
: extreme depression of mind or spirits often centered on imaginary physical ailments; specifically : HYPOCHONDRIASIS

(from "LOST")

mulligan
Pronunciation: 'm&-li-g&n
Function: noun
Etymology: probably from the name Mulligan
: a free shot sometimes given a golfer in informal play when the previous shot was poorly played

gaffe
Pronunciation: 'gaf
Function: noun
Etymology: French, gaff, gaffe
: a social or diplomatic blunder

ornithology
Pronunciation: "or-n&-'thä-l&-jE
Function: noun
Inflected Form(s): plural -gies
Etymology: New Latin ornithologia, from ornith- + -logia -logy
1 : a branch of zoology dealing with birds
2 : a treatise on ornithology
- ornithologist /-'thä-l&-jist/ noun