μετάθεσις · metathesis — LSJ
change of position, transposition, Arist. Metaph. 1024a4; μεταθέσεις ἐξ ἕδρας ἀτόμων Epicur. Fr. 61; ἡ τῶν ῥημάτων μ. D. 24.84, cf. D.S. 1.23; τοῦ ἀναβαθμοῦ PSI 5.546 (iii B. C.); τοῦ ἐμβρύου Sor. 2.60; couching of a cataract, Gal. 10.990.
generally, change, θεὸς οὐδεμίαν ἐπιδεχόμενος μ. Arist. Mu. 400b29; μ. ἐκ τῆς οἰκείας φύσεως Phld. Rh. 1.216 S.; νόμου μ. Ep.Hebr. 7.12; esp. change of sides or opinions, ἐπὶ τὸ βέλτιον Plb. 1.35.7, cf. Porph. Abst. 1.2, etc. (hence, amendment, τῶν ἡμαρτημένων Plb. 5.11.5; ἐκ μεταθέσεως Id. 30.20.2; going over, πρός τινα Id. 5.86.8.
exchange, barter, Id. 10.1.8 (pl.).
Gramm., change of a letter, A.D. Pron. 51.5, al., EM 795.34; also, metathesis, transposition of letters, as κραδίη for καρδία, Trypho Pass. 4, Apollon. Lex. s.v. ἀγλαά.
plagiarism, opp. μίμησις, Demetr. Eloc. 112.
power or right of changing sides, Th. 5.29.