σφάκελος
σφᾰ/κελ-ος, ὁ,
A). gangrene, mortification, or, of bones, caries, Aph. 7.78 ; τοῦ ἐγκεφάλου Id. Aër. 10 (pl.); so called when farther advanced than γάγγραινα, cf. 2.632 , 18(1).687 .
2). generally, spasm, convulsion, Pr. 878 (anap.); κατὰ δ’ ἐγκέφαλον πηδᾷ ς. Hipp. 1352 (anap.): metaph., ς. ἀνέμων the convulsive fury of winds, Pr. 1045 (anap.).
3). the middle finger, Suid. s.v. σφακελισμός ; so σφάκηλος (or φάκηλος) PLond. 1821.297 .