βλαβερῶς

From LSJ

ἄπαγ' ἐς μακαρίαν ἐκποδών → get lost, buzz off, on yer bike, bug off, bugger off, clear out, clear off, take a hike, beat it, scram, get out of here, get outta here

Source

French (Bailly abrégé)

adv.
d'une manière nuisible.
Étymologie: βλαβερός.

Spanish

de forma perjudicial

Russian (Dvoretsky)

βλᾰβερῶς: причиняя вред, нанося ущерб Plat., Plut.