πεντέπους
From LSJ
κακοὶ μάρτυρες ἀνθρώποισιν ὀφθαλμοὶ καὶ ὦτα βαρβάρους ψυχὰς ἐχόντων → eyes and ears are poor witnesses for men if their souls do not understand the language (Heraclitus Phil.: Fr. B 107; Testimonia: Fragment 16, line 6)
English (LSJ)
πουν, gen. ποδος,
A of five feet, five feet long, IG 12.372.128, al., 22.1668.44, Pl. Tht.147d :—later πεντάπους, Milet. 7.57 (Didyma, iii/ii B. C.) ; ἄγαλμα Arr. Peripl.M.Eux.3 ; πεντάπους τὸ ὄρυγμα, = carrecta, Gloss.