rout

The noun is derived from Middle English rout, route (“group of people associated with one another, company; entourage, retinue; army; group of soldiers; group of pirates; large number of people, crowd; throng; group of disreputable people, mob; riot; group of animals; group of objects; proper condition or manner”) [and other forms], from Anglo-Norman route, rute, Middle French rote, route, Old French rote, route, rute (“group of people, company; group of armed people; group of criminals; group of cattle”) (modern French route (obsolete)), from Latin rupta (compare Late Latin ruta, rutta (“group of marauders; riot; unlawful assembly”)), the feminine of ruptus (“broken; burst, ruptured”), the perfect passive participle of rumpō (“to break, burst, rupture, tear; to force open; (figurative) to annul; to destroy; to interrupt”), ultimately from Proto-Indo-European *Hrewp- (“to break; to tear (up)”). The English word is a doublet of route.

The verb is derived from Middle English routen (“to assemble, congregate; of animals: to herd together; to regroup, make a stand against; to be riotous, to riot”) [and other forms], from rout, route (noun); see above.