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," from Latin angustia (plural angustiae) "tightness, straitness, narrowness;" figuratively "distress, difficulty," from ang(u)ere "to throttle, torment" (see anger (v.)).
anguish (v.) Look up anguish at Dictionary.com
early 14c., intransitive and reflexive; mid-14c., transitive, from Old French anguissier (Modern French angoisser), from anguisse (see anguish (n.)). Related: Anguished; anguishing.