The Meaning of Deacon or Deaconess in the Greco Roman Years

The word deaconos or deaconia servant service it occurs frequently in Greek literature loads of references to deaconos. In the Greco Roman Roman use of the term debates about how Paul's using the term there is an argument made by John Collins that deacon does not refer to menial stuff manual labor servant slave sometimes but it also used as kind of an emissary like a go between a representative of a messenger. Deacon then be capturing the servitude upside down nature of leadership so in a roundabout way could Deacon have a why?