Θέστωρ

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

Source

French (Bailly abrégé)

ορος (ὁ) :
Thestor, « qui supplie », père de Calchas et d'Alcméon.
Étymologie: DELG θέσσομαι.

English (Autenrieth)

(1) the father of Calchas. —(2) father of Alcmāon.—(3) son of Enops, slain by Patroclus, Il. 16.401†.

Russian (Dvoretsky)

Θέστωρ: ορος ὁ Тестор
1 сын Энопа, троянец, убитый Патроклом Hom.;
2 отец Калханта Hom.