ἀκαρής
ἀκαρής
κείρω
of hair, too short to be cut, very short: mostly in neut. ἀκαρές,
of Time, a moment, ἐν ἀκαρεῖ χρόνου Ar.; ἀκαρῆ διαλιπὼν (sc. χρόνον) having waited a moment, Ar.; ἀκαρὲς ὥρας a moment, Plut.
the acc. ἀκαρῆ is used adverbially without reference to Time, οὐκ ἀκαρῆ or οὐδʼ ἀκαρῆ not a bit, Ar.