ἰσχνασία
From LSJ
οἷς τὰ ὁρώμενα τὴν ἀρχὴν ἐνδίδωσι, καὶ οἷον ὑπήνεμα διὰ τῶν ὀφθαλμῶν τὰ πάθη ταῖς ψυχαῖς εἰστοξεύονται → who taketh his beginning and occasion from something which is seen, and then his passion, as though wind borne, shoots through the eyes and into the heart
English (LSJ)
Ion. -ιη, ἡ,
A thinness, leanness, Hp.Aff.12, Arist.Metaph.1013b1, 1048b29.
German (Pape)
[Seite 1272] ἡ, = ἴσχνανσις, Arist. metaphys. 8, 6.