eş: vier Buchstaben, fünf Buchstaben, Allerwertester, Hintern, Hinterteil, Käcker
köken: From Middle High German ars, from Old High German ars, from Proto-West Germanic *ars. Cognate with Dutch aars, English arse. The alternative neuter gender in the figurative sense probably from a backformation from Arschloch (“arsehole”).
köken: Etymology tree Italian cazzobor. Esperanto kaco Russian -у́ля (-úlja)bor. Proto-Slavic *-uľa Polish -ulabor. Esperanto -ulo Esperanto kaculo From kaco (“dick, cock”) + -ulo (“person”).
Iu kaculo jam ŝtelis mian biciklon. Some prick already stole my bike.
köken: Unknown. One proposed etymology is that it comes from Hebrew שלא מועיל (“who is not helpful”), though such an etymology would be expected to yield *shloyml or *shlemoyl. Another is that it comes from the Biblical figure Shelumiel ben Tzurishadai, though it is unknown how he would have come to be associated with bungling.