drunk with words & wine

Normally the repeated letter occurs at the opening of words, and such echoes alone strictly merit the title of alliteration — though one may legitimately include cases where the letter is the first of the second half of a compound. But we also find cases of clearly intentional medial assonance. Agathon in his peroration (Smp. 197D) says ἐν πόνῳ, ἐν φόβῳ, ἐν πόθῳ, ἐν λόγῳ κυβερνήτης κτλ.  λόγῳ makes no sense, and many editors emend it: but Agathon is drunk with his own words, as well as with his own wine.

J. D. Denniston. Greek Prose Style (1952).