ephor
One of the five annually-elected senior magistrates in various Dorian states, especially in ancient Sparta, where they oversaw the actions of Spartan kings.
historical
Agesilaus was fined by the Ephories, because he had drawne the hearts and good wills of al his fellow-citizens unto himselfe alone.
A superintendent or curator.
Where it comes from
From Ancient Greek ἔφορος (éphoros, “overseer”), from Homeric ἐπίουρος (epíouros), from ἐπί (epí, “over”) + ὁράω (horáō, “look”).
Adapted from the Wiktionary entry ephor (CC BY-SA 4.0).