Chutzpah:
"Chutzpah is the quality of audacity, for good or for bad. It derives from the Hebrew word ḥutspâ, meaning "insolence", "cheek" or "audacity". Thus the original Yiddish word has a strongly negative connotation but the form which entered English through Ameridish has taken on a broader meaning, having been popularized through vernacular use in film, literature, and television. The word is sometimes interpreted—particularly in business parlance—as meaning the amount of courage, mettle or ardor that an individual has."