grief (n.) Look up grief at Dictionary.com
early 13c., "hardship, suffering, pain, bodily affliction," from Old French grief "wrong, grievance, injustice, misfortune, calamity" (13c.), from grever "afflict, burden, oppress," from Latin gravare "make heavy; cause grief," from gravis "weighty" (see grave (adj.)). Meaning "mental pain, sorrow" is from c. 1300. Good grief as an exclamation of surprise, dismay, etc., is from 1937.