ἐπιψηλαφάω
From LSJ
Περὶ τοῦ ἐπέκεινα τοῦ νοῦ κατὰ μὲν νόησιν πολλὰ λέγεται, θεωρεῖται δὲ ἀνοησίᾳ κρείττονι νοήσεως → On the subject of that which is beyond intellect, many statements are made on the basis of intellection, but it may be immediately cognised only by means of a non-intellection superior to intellection
English (LSJ)
A feel by passing the hand over the surface, τι Pl.R.360a; ἐ. τινός feel for it, Id.Prt.310c.
German (Pape)
[Seite 1006] betasten, anfassen, τὸν δακτύλιον Plat. Rep. II, 360 a; c. gen., τοῦ σκίμποδος Prot. 310 c.