κελλίβας
From LSJ
Δελφῖνα νήχεσθαι διδάσκεις: ἐπὶ τῶν ἐν ἐκείνοις τινὰ παιδοτριβούντων, ἐν οἷς ἤσκηται → Teaching dolphins to swim: is applied to those who are teaching something among people who are already well versed in it
English (LSJ)
-ατος, ὁ, prob. = κιλλίβας, portable table, PRyl.136.10 (i A.D.); cf. Lat. cilibantum, cilliba.
Greek Monolingual
κελλίβας, -ατος, ὁ (Α)
πάπ. πιθ. κιλλίβας, κινητή τράπεζα.
[ΕΤΥΜΟΛ. < λατ. cilliba «στρογγυλή τράπεζα»].
Frisk Etymological English
See also: s. κιλλίβας