trauma (n.) Look up trauma at Dictionary.com
1690s, "physical wound," medical Latin, from Greek trauma "a wound, a hurt; a defeat," from PIE *trau-, extended form of root *tere- "to rub, turn," with derivatives referring to twisting, piercing, etc. (see throw (v.)). Sense of "psychic wound, unpleasant experience which causes abnormal stress" is from 1894.