κατα-ψεύδομαι · kata-pseudomai — LSJ
tell lies against, speak falsely of, τινος Ar. Pax 533, Lys. 16.8, Antipho 2.4.7, Pl. R. 381d, D. 21.134, etc.; κ. τινὸς πρός τινα accuse falsely to another, Plu. Them. 25, Phoc. 33: abs., Hyp. Lyc. 8.
allege falsely against, τί τινος And. 1.8, Pl. Euthd. 283e, R. 391d; τὰ πλεῖστα κατεψεύσατό μου D. 18.9; ἑαυτοῦ μωρίαν D.H. 4.68.
say falsely, pretend, ὡς . . E. Ba. 334; feign, invent, τι D. 18.11.
c. gen., make a pretence of, ὕπνου Luc. Asin. 7; give a false account of, γένους Arist. Pr. 950b6; τῶν πραγμάτων J. BJ Prooem. 1.
Pass., to be falsely reported, Ἑλληνικὸς ὅρκος -ψεύδεται Theon Prog. 2; τὰ κατεψευσμένα false allegations, Antipho 5.19; to be falsely accused, προδότης εἶναι κατεψεύσθη Philostr. Her. 10.7, cf. VA 5.24.
of writings, to be falsely attributed, τινος to one, Ael. VH 12.36: abs., to be spurious, Ath. 15.697a, Plu. VOrat. 2.833c.
to be wrong, in error, Phld. Mus. p.103 K., Str. 9.2.33: c. gen., about . . , Sor. 1.14, 2.4.