sibilum
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
Latin > English
sibilum sibili N N :: hissing, whistling; hiss of contempt or disfavor
Latin > German (Georges)
sībilum, s. 2. sībilus.