πραγματευτής
From LSJ
English (LSJ)
οῦ, ὁ,
A business representative, = Lat. actor, Plu.2.525a, PColumb. in JEA18.16 (ii A. D.), PMasp.158.17 (v A. D.), etc.; π. Πτολεμαίου his agent or attorney, CIG4299 (Antiphellus), cf. 3104 (Teos), IG14.2057, OGI525.3 (Halic.), PTeb.357.5 (ii A. D.), etc.