anguish (v.) Look up anguish at Dictionary.com
mid-14c., angwisshen, intransitive and reflexive ("be troubled or distressed; feel agony") and transitive ("cause grief, distress,or torment"); from Old French angoissier (12c., Modern French angoisser), from angoisse "distress, anxiety, rage" (see anguish (n.)). Related: Anguished; anguishing.
anguish (n.) Look up anguish at Dictionary.com
c. 1200, "acute bodily or mental suffering," from Old French anguisse, angoisse "choking sensation, distress, anxiety, rage" (12c.), from Latin angustia (plural angustiae) "tightness, straitness, narrowness;" figuratively "distress, difficulty," from ang(u)ere "to throttle, torment" (from PIE root *angh- "tight, painfully constricted, painful").