ὑφέρπω · hypherpō — LSJ
creep on secretly, spread, creep abroad
creep on secretly, ὑφεῖρπε γὰρ πολύ the report spread far, S. OT 786; φθονερὸν ὑπʼ ἄλγος ἕρπει Ἀτρείδαις angry feelings creep abroad against them, A. Ag. 450 (lyr.).
II secretly aim at
c. acc., ὑ. εὐνήν Philostr. VA 1.37; ὑ. σκοπόν secretly aim at, Hld. 10.19.
2 steal upon, come over
like ὑπέρχομαι II, of involuntary feelings, steal upon, come over, χαρά μʼ ὑφέρπει A. Ag. 270; τρόμος μʼ ὑ. Id. Ch. 463 (lyr.).