יָסַד
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 (Strong)
a primitive root; to set (literally or figuratively); intensively, to found; reflexively, to sit down together, i.e. settle, consult: appoint, take counsel, establish, (lay the, lay for a) found(-ation), instruct, lay, ordain, set, X sure.
