κτηδών
From LSJ
θεωρεῖται δὲ ἀνοησίᾳ κρείττονι νοήσεως → it is grasped only by means of an ignorance superior to intellection, it may be immediately cognised only by means of a non-intellection superior to intellection
English (LSJ)
όνος, ἡ,
A line of fissure in the fibre of wood, Thphr.HP5.1.9 sq.; κτηδόνες ξύλου grain of wood, HeroBel.96.12, cf. Suid. 2 Medic. in pl., fibres of the heart, Hp.Cord.10, cf. Erot.s.v. ἶνες. b layers in the cornea of the eye, Ruf.Anat.10. c κ. πιμελῆς fibres in a piece of fat, Sor.1.118. 3 layers of slate, Dsc.5.127. 4 gills of a mushroom, Id.3.1. 5 shreds of lint, Gal.8.415. (Cf. εὐκτέανος (B), εὐθυκτέανον, ἰθυκτέανον.)