co-opt

verb

1.
choose or elect as a fellow member or colleague
Event:
co-optation co-option
Derived from:
co-optation co-option
2.
neutralize or win over through assimilation into an established group
3.
appoint summarily or commandeer
Event:
co-optation co-option
Derived from:
co-optation co-option
4.
take or assume for one's own use