ἡγούμενος τῶν ἡδονῶν ἀλλ' οὐκ ἀγόμενος ὑπ' αὐτῶν → of his pleasures he was the master and not their servant
or (shortened) ammits; from אָמַץ; strong or (abstractly) strength: courageous, mighty, strong (one).