Same entry in Photius and other lexica, interpreting e)poi=sai as an aorist active infinitive connected with e)pife/rw. However, Hesychius epsilon5477 is superior: future indicative e)poi/sei glossed with e)pene/gkoi; see also the scholia to Homer, Iliad 1.89, where that form occurs.
On the stem oi)s- as aorist, see also omicroniota 170.