συνεπιρρώννυμι
From LSJ
ἡγούμενος τῶν ἡδονῶν ἀλλ' οὐκ ἀγόμενος ὑπ' αὐτῶν → of his pleasures he was the master and not their servant
English (LSJ)
A help to strengthen or support, τοὺς Ἕλληνας Plu.Alex.33, cf. Brut.49:—Pass., of language, to be based firmly at the same time on, τοῖς ὕψεσι Longin.11.2.
Greek (Liddell-Scott)
συνεπιρρώννῡμι: συμβοηθῶ ἐνισχύων, ὑποστηρίζων, παρεκάλει τοὺς θεούς... ἀμῦναι καὶ συνεπιρρῶσαι τοὺς Ἕλληνας Πλουτ. Ἀλέξ. 33, κτλ. ― Παθητ., ἐπὶ τῆς γλώσσης, ὡσαύτως ἐνισχύομαι, Λογγῖν. 11. 2.