Just going over the morning grammar lesson, I mean weather discussions and thought I'd throw in my two cents, so, here's another definition for affect from the American Heritage dictionary:

v. tr: To put on a false show of; simulate: as in "affected a British accent."

Oh, and look, here's the origin- of "erudite"
Middle English erudit, from Latin rudtus, past participle of rudre, to instruct : -, ex-, ex- + rudis, rough, untaught; see "rude."

Just thought I'd share