ἐπιορκία
From LSJ
Πάντα οὖν ὅσα ἐὰν θέλητε ἵνα ποιῶσιν ὑμῖν οἱ ἄνθρωποι, οὕτως καὶ ὑμεῖς ποιεῖτε αὐτοῖς· οὗτος γάρ ἐστιν ὁ νόμος καὶ οἱ προφῆται → Therefore as many things as you would like people to do for you, do also the same for them: that is the Torah, that is the prophets! (Matthew 7:12)
English (LSJ)
ἡ,
A false swearing, perjury, X.An.3.2.4, etc.; ἐ. οἴκαδ' εἰσενέγκασθαι D.19.220: pl., Pl.Grg.525a; πρὸς θεούς X.An.2.5.21.