Verbs

(v)co-optchoose or elect as a fellow member or colleague“The church members co-opted individuals from similar backgrounds to replenish the congregation”
(v)co-optneutralize or win over through assimilation into an established group“We co-opted the independent minority tribes by pulling them into the Northern Alliance”
(v)co-optappoint summarily or commandeer“The army tried to co-opt peasants into civil defence groups”
(v)co-opttake or assume for one's own use“He co-opted the criticism and embraced it”