ἐφέρπω
ἐφέρπω
fut. ψω
but the aor1 in use is ἐφείρπυσα
to creep upon, Ar.
poet. to come on or over, come gradually or stealthily upon, τινά Aesch.; ἐπʼ ὄσσοισι νὺξ ἐφέρπει Eur.
absol. to go forth, proceed, Aesch.; in part. advancing, future, Pind.