imperious (adj.): domineering in a haughty manner; dictatorial; overbearing.
somnambulism (n.): sleepwalking.
impunity (n.): exemption from punishment.
cheroot (n.): a cigar having open, untapered ends.
effusive (adj.): unduly demonstrative; lacking reserve.
landau (n.): a four-wheeled, two-seated carriage with a top made in two parts that may be let down or folded back.
asthenic (adj.): of, pertaining to, or characterized by asthenia; weak.
penury (n.): extreme poverty; destitution.
insouciant (adj.): free from concern, worry, or anxiety; carefree; nonchalant.
swain (n.): a male admirer or lover; a country lad; a country gallant.
aphorism (n.): a terse saying embodying a general truth, or astute observation.
pleach (v.): to interweave (branches, vines, etc.), as for a hedge or arbor.
comportment (n.): personal bearing or conduct; demeanor; behavior.
moue (n.): a pouting grimace.
grippe (n.): influenza.
miasma (n.): a dangerous, foreboding, or deathlike influence or atmosphere.
auscultation (n.): the act of listening, either directly or through a stethoscope or other instrument, to sounds within the body as a method of diagnosis.
subcutaneous (adj.): performed or introduced under the skin, as an injection by a syringe.
dilettante (n.): a person who takes up an art, activity, or subject merely for amusement, esp. in a desultory or superficial way; dabbler.
effete (adj.): exhausted of vigor or energy; worn out.
lugubrious (adj.): mournful, dismal, or gloomy, esp. in an affected, exaggerated, or unrelieved manner.
hussar (n.): (originally) one of a body of Hungarian light cavalry formed during the 15th century.
empyema (n.): a collection of pus in a body cavity, esp. the pleural cavity.
trocar (n.): a sharp-pointed instrument enclosed in a cunnula, used for withdrawing fluid from a cavity, as the abdominal cavity.
prurient (adj.): having, inclined to have, or characterized by lascivious or lustful thoughts, desires, etc.
conjunctiva (n.): the mucous membrane that lines the exposed portion of the eyeball and inner surface of the eyelids.
pastiche (n.): a literary, musical, or artistic piece consisting wholly or chiefly of motifs or techniques borrowed from one or more sources.
apoplexy (n.): a sudden, usually marked loss of bodily function due to rupture or occlusion of a blood vessel.
protean (adj.): readily assuming different forms or characters; extremely variable.
chancre (n.): the initial lesion of syphilis and certain other infectious diseases, commonly a more or less distinct ulcer or sore with a hard base.
mountebank (n.): a person who sells quack medicines, as from a platform in public places, attracting and influencing an audience by tricks, storytelling, etc.
Well. That was exhausting.
definitions from dictionary.reference.com