dedecorus
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 (Lewis & Short)
dē-dĕcōrus: a, um,
I adj., disgraceful, dishonorable, shameful (very rare), Plaut. Bacch. 5, 2, 73: majoribus suis, Tac. A. 3, 32; id. ib. 12, 47.