(ἀντωμοσία; antōmosía) was in Greece, in particular in Athens, an oath, which both parties had to make in the preliminary examination or in the main proceedings, probably a relic from archaic legal procedure. By means of the antomosia the truth of the plaint and the answer to the plaint was substantiated in advance. Therefore the name also extended to the pleas ( Antigraphe). The antomosia was not adopted by Plato (Leg. 948d).
A. R. W. Harrison, The Law of Athens I, 1971, 99 f.
G. Thür, Greek Law, ed. by L. Foxhall, 1996, 63 f.