con·so·ci·ate 
(kən-sōshē-āt′)
(kən-sōshē-āt′)tr. & intr.v. con·so·ci·at·ed, con·so·ci·at·ing, con·so·ci·ates
To bring or come into friendly or cooperative association.
adj. (-ĭt)
Associated; united.
n. (-ĭt)
An associate or partner.
[Latin cōnsociāre, cōnsociāt-, to associate : com-, com- + sociāre, to associate (from socius, companion; see sekw-1 in the Appendix of Indo-European roots).]