A partner or associate.It is with contemporaries and consociates that most of my social traffic occurs....
The support of consociates, who share a common work history, has enabled them "to place their lives in perspective.
This face-to-face relationship between consociates need not be especially intimate.
Origin
Late Middle English (as an adjective in the sense 'associated'): from Latin consociatus 'joined in action', from the verb consociare, from con 'together' + socius 'sharing, allied'.