hag-ridden (n.)youdaoicibaDictYouDict[hag-ridden 词源字典]
1680s, "ridden by hags or witches," past-participle adjective from hag-ride (1660s); from hag (n.) + ridden. From 1702 as "oppressed, harassed;" 1758 as "afflicted by nightmares." An old term for sleep paralysis (the sensation of being held immobile in bed, often by a heavy weight, and accompanied by a sense of alien presence). A holed stone hung over the bed was said to prevent it.[hag-ridden etymology, hag-ridden origin, 英语词源]
harass (v.)youdaoicibaDictYouDict
1610s, "to lay waste, devastate" (obsolete); 1620s, "to vex by repeated attacks," from French harasser "tire out, vex" (16c.), which is of uncertain origin; possibly from Old French harer "stir up, provoke; set a dog on," and perhaps blended with Old French harier "to harry, draw, drag" [Barnhart]. Related: Harassed; harassing.