I.Dep. to busy or exert oneself, take trouble, Hdt., Xen., Plat.
2.to be engaged in business, spend one's time in business, Xen., etc.
II.c. acc. rei, to take in hand, treat laboriously, undertake, Plat.:—of authors, to elaborate a work, Ar., Plat.
2.of historians, to treat systematically, Polyb.; οἱ πραγματευόμενοι systematic historians, id=Polyb.
III.perf. πεπραγμάτευμαι also in pass. sense, to be laboured at, worked out, Plat., Aeschin.