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
Ackerbauer, s. Ackersmann. – Ackerfeld, campus arabilis (ackerbares). – iugera sationis (bestellbares). – arationes. arvum (bestelltes).