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 "to cause grief, make heavy," from gravis "weighty" (see grave (adj.)). Meaning "mental pain, sorrow" is from c.1300.