harrow
noun
°A device consisting of a heavy framework having several disks or teeth in a row, which is dragged across ploughed land to smooth or break up the soil, to remove weeds or cover seeds; a harrow plow.
verb
°To drag a harrow over; to break up with a harrow.
°To traumatize or disturb; to frighten or torment.
"The headless horseman harrowed Ichabod Crane as he tried to reach the bridge."
interjection
°(obsolete) A call for help, or of distress, alarm etc.