1.To choose or elect in concert with another. (R.) "Each of the hundred was to coopt three others."
2.To choose or elect as a colleague or fellow member of a group; as, The church members co-opted individuals from similar backgrounds to replenish the congregation.
3.To assimilate (a smaller group) into a larger group.
4.To persuade an opponent to join one's own side.
5.To appoint summarily (with or without the appointee's consent).
6.To appropriate (something rightly belonging to another) as one's own; to preempt; as, to co-opt someone's name.
...
