agminate (adj.) -- gathered in clusters

scullion (n) -- a servant employed to do menial tasks in a kitchen

agnail (n) -- a hangnail

polyconic projection (n) -- a conic map projection having distances between meridians along every parallel equal to those distances on a globe--the central geographic meridian is a straight line, whereas the others are curved and the parallels are arcs of circles

agnate (adj.) -- related on or descended from the father's or male side

aggravate (v) -- to make worse or more troublesome; to make more of a burden
Usage Note: aggravate is incorrectly used to mean irritate or annoy; the incorrect usage has been found to exist since the 1600's. You should avoid this in formal writing.

megalomania (n) -- a psychopathological condition characterized by delusional fantasies of wealth, power, or omnipotence

aver (v) -- to assert formally as fact

fortuitous (adj.) -- happening by accident or chance

proliferate (v) -- to grow or multiply by rapidly producing new tissue, parts, cells, or offspring

preen (v) -- to take pride or satisfaction in (oneself); gloat