τοῦ εἰδέναι χάριν ἡ πραγματεία → knowledge is the object of our inquiry, the aim of our investigation is knowledge
subs.
P. and V. κάλως, ὁ, πεῖσμα, τό (Plat.), P. σπάρτον, τό, Ar. and P. τόνος, ὁ; see rope.