κόβαρος
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)
ἄνθρωπος, Hsch. κόβειρος, ὁ,
A jester, Id.: Adj., in pl., κόβειρα· γελοῖα, Id. κοβελίσκον· τρύβλιον, Id. κόγκαλος· κονιορτός, Id. (leg. κονίσαλος). κόγξ, onomatop., sound made by the voting-pebble as it fell into the urn, Id. κογχαλίζω, of shells, murmur, Id.
Greek (Liddell-Scott)
κόβαρος: «ὅνος» Ἡσύχ.