χιασμός
From LSJ
εἰπὼν ἃ θέλεις, ἀντάκουε ἃ μὴ θέλεις → if you say what you want, hear in response what you don't want
English (LSJ)
ὁ,
A placing crosswise, diagonal arrangement, esp. of the clauses of a period, so that the 1st corresponds with the 4th, and the 2nd with the 3rd, Hermog.Inv.4.3; κατὰ χιασμόν Sch.Isoc.12.47. 2 cruciform incision, Antyll. ap. Orib.44.20.32 (-εσμός codd., and so of a noose, Heraclas ap. eund.48.9.2; of a bandage, Heliod. ap. eund. 48.65 tit.). 3 decussation, σκιῶν Cleom.1.9, cf. Nicom.Ar.1.19 (pl.); of nerves, Aret.SD1.7. 4 cancellation of a document, PMasp.151.292 (vi A. D.).