perniciabilis

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

Latin > English (Lewis & Short)

pernĭcĭābĭlis: e, adj. pernicies,
I destructive, ruinous, pernicious: id perniciabile reo, Tac. A. 4, 34: nix oculis perniciabilis, Curt. 7, 3, 13: pestilentia quae magis in morbos longos quam in perniciabilis evasit, Liv. 27, 23, 7.

pernĭcĭābĭlis,¹⁵ e (pernicies), pernicieux, funeste : Liv. 27, 23, 6 ; Curt. 7, 3, 13 ; Tac. Ann. 4, 34.