A distinction must be made between gehen (walk), fahren (go by bike, car, train, or ship), and fliegen (go by plane). Polite ways to ask someone to leave include please leave me alone or the more indirect i need time to myself at the moment In austria, however, laufen is not considered neutral with regard to pace, and a strict distinction is made between gehen, which is used exclusively in the sense of “to walk”, and laufen and rennen, both of which are exclusively used in the sense of “to run”.
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The original quotation was „der mohr hat seine arbeit getan, der mohr kann gehen“ (“the moor has done his work, the moor can go)
It comes from the play fiesco by friedrich schiller.
From middle high german anegān, from old high german anagān Zum vergnügen umhergehen, umherwandeln, lustwandeln, flanieren Telling someone to get lost! is slightly more rude than, for example, beat it! but less rude or vulgar than piss off! or fuck off!