colleague

Etymology

From Middle French collegue, from Latin collēga (“a partner in office”), from com- (“with”) + lēgō (“to send on an embassy”), from lēx (“law”).

noun

1. A fellow member of a profession, staff, academic faculty or other organization; an associate.
   Mostly, the microbiome is beneficial.[…]Research over the past few years, however, has implicated it in diseases from atherosclerosis to asthma to autism. Dr Yoshimoto and his colleagues would like to add liver cancer to that list. 2013-06-29, “A punch in the gut”, in The Economist, volume 407, number 8842, pages 72–3

verb

1. To unite or associate with another or with others.
   Young Fortinbras,/ Holding a weak supposal of our worth/...Colleagued with the dream of his advantage,/...hath not failed to pester us with message/ Importing the surrender of those lands/Lost by his father. - Hamlet (Act I, Scene 2)