χι-αστός · chi-astos — LSJ
arranged diagonally
arranged diagonally, λίθοι Ph. Bel. 94.45; of a noose (in form χιεστός) Heraclas ap. Orib. 48.3 tit.; of a bandage, Sor. Fasc. 7 (in form χιεστός), Gal. 18(1).819. Adv. -τῶς of an incision, PSI 10.1180.47 (ii A. D.).
2 in the shape of a X
in the shape of a X, σημεῖον Eust. 599.35.
II
esp. in Rhet. (cf. χιάζω) , χ. περίοδος Sch. Isoc. 6.42, cf. Sch. Il. 16.564, Porph. in Cat. 78.36.