amphiorkia

AMPHIOR´KIAor AMPHOMOS´IA(ἀμφιορκίαor ἀμφωμοδία), the oath which was taken, both by the plaintiff and defendant, before the trial of a cause in the Athenian courts, that they would speak the truth (Hesych., Suid.). In the ἀνάκρισις or preliminary investigation it was called διωμοσία. The notion of some grammarians (Pollux, 8.122; Bekker, Anecd. pp. 184, 9; 311, 23), that it was also applied to the judges' oath is a mistake.

or amphomosia (ἀμφιορκία or ἀμφωμοσία). The oath which was taken, both by the plaintiff and the defendant, before the trial of a cause in the Athenian courts, that they would speak the truth. In the ἀνάκρισις, or preliminary investigation, it was called διωμοσία.