What is the greek word for superior?

There isn't one single perfect Greek word for "superior" as the best translation depends on the context. Here are a few options, each with slightly different nuances:

* κρείττων (kreittōn): This word means "better," "stronger," or "superior" in terms of power or ability. It's often used in a comparative sense.

* ἀνώτερος (anōteros): This means "higher" or "upper," and can be used to describe something superior in rank, position, or quality.

* ὑπέρτερος (hypérteros): Similar to ἀνώτερος, this means "higher" or "superior" and implies surpassing others.

* ἄριστος (aristos): This means "best" and can imply superiority in quality or excellence.

The best choice depends on what kind of superiority you're referring to. If you can provide the context, a more precise translation can be given.