Elision.—In elision, oxytone prepositions and conjunctions lose their accent: παρ' (for παρὰ) ἐμοῦ, ἀλλ' (for ἀλλὰ) ἐγώ. In other oxytones the accent is thrown back to the penult: πόλλ' (for πολλὰ) ἔπαθον.
a. Observe that in πόλλ' ἔπαθον the acute is not changed to the grave ( cross154 a, cross3). A circumflex does not result from the recession of the accent. Thus, φήμ' (not φῆμ') ἐγώ for φημὶ ἐγώ. τινά and ποτέ, after a word which cannot receive their accent ( cross183 d), drop their accent: οὕτω ποτ' ἦν.
Herbert Weir Smyth [n.d.], A Greek Grammar for Colleges; Machine readable text [info] [word count] [Smyth].