torment (n.)

c. 1300, "the inflicting of torture," also "state of great suffering, pain, distress," from Old French torment "torture, pain, anguish, suffering distress" (11c., Modern French tourment), from Latin tormentum "twisted cord, sling; clothes-press; instrument for hurling stones," also "instrument of torture, a rack," figuratively "anguish, pain, torment," from torquere "to twist" (from PIE root *terkw- "to twist").

c. 1300, "inflict torture on, distress," from Old French tormenter "torture, torment, oppress, agitate" (12c.), from Medieval Latin tormentare "to torment, to twist," from Latin tormentum "twisted cord, sling; clothes-press; instrument for hurling stones," also "instrument of torture, a rack," figuratively "anguish, pain, torment," from torquere "to twist" (from PIE root *terkw- "to twist"). Related: Tormented; tormenting.