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arse

/ɑːs/

Vulgar term for buttocks or anus

From Proto-Germanic arse / ars- (buttock).

noun
verb
interjection
arse
Proto-Indo-European
Verified
*ors-
reconstructed
buttock, backside; the deep ancestral sense

from PIE root *ors- "buttock, backside" (source also of Greek orros "tail, rump, base of the spine," Hittite arrash ,...

Proto-Germanic
Verified
*arsaz / *arsoz
reconstructed
Germanic descendant meaning 'buttock'

from Proto-Germanic *arsoz (source also of Old Saxon, Old High German, Old Norse ars , Middle Dutch ærs , German Arsch...

+1 more source
Old English
Verified
ærs
tail, rump

from Old English ærs, ears

Middle English
Verified
ars / ers
the familiar vulgar noun

from Middle English ars, ers

Modern English
arse

This little word has been sitting in the language far longer than its modern rudeness suggests. Long before anyone was hissing it in a pub, speakers of Proto-Indo-European had a blunt little root, *ors-, for the backside; Germanic inherited it, and Old English wrote it as ærs. That same ancient family tree turns up in surprising cousins: German Arsch, Dutch aars, and even a Greek word for tail, orros, all circling the same rear-view image. By the 1630s, English was already using it figuratively in phrases like hang the arse, and later it bred comic mutations like arse over tit. So when someone calls another person an arse today, they are tossing a very old insult—one that has been pointing backward for thousands of years.

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