τέχν-ημα · techn-ēma — LSJ
that which is cunningly wrought, work of art, handiwork, ἔκπωμα . . , τεχνήματʼ ἀνδρός S. Ph. 36 (where pl. is used of one thing).
of a man, πανουργίας τέχνημα a masterpiece of villainy, ib. 928.
artful device, trick, κάπηλα προσφέρων τ. A. Fr. 322; δόλια τ. E. IT 1355; opp. ἰσχύς, Hp. Fract. 2 (pl.): generally, device, contrivance, Pl. Prt. 319a; τὸ μνημονικὸν τ. Id. Hp.Mi. 368d, al., cf. Ephor. 54J.