aggravation (n.) Look up aggravation at Dictionary.com
late 15c., "an increasing in gravity or seriousness," from Middle French aggravation, from Late Latin aggravationem (nominative aggravatio), noun of action from past participle stem of Latin aggravare "make heavier," figuratively "to embarrass further, increase in oppressiveness," from ad "to" (see ad-) + gravare "weigh down," from gravis "heavy" (see grave (adj.)). Sense of "irritation" is from 1610s.