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: Representing a Norman pronunciation of benoît, originally meaning "blessed", then "sanctimonious, blissful, etc." before descending into this term. For semantic development, perhaps compare etymology of English silly.
köken: From ба́ять (bájatʹ) (or related to балабо́л (balaból), балабо́лить (balabólitʹ)) + гу́ркать (gúrkatʹ) (related to го́вор (góvor), говори́ть (govorítʹ)). For the similar meaning development compare Latin iocus (“a joke, a jest”) from Proto-Indo-European *yek- (“to speak”).
köken: Sino-Korean word from 等 (“equate”) + 神 (“deity; spirit”), originally referring to a figurine of a spirit or goblin. The meaning appears to have changed because these figurines were perceived as being unable to do anything (Cho Hang-bum 2019, pp. 158—159).
köken: From Old Swedish dāre, from Old Norse dári, Middle Low German dore, from Old Saxon *dōro, from Proto-West Germanic *dauʀō. See also German Tor; Icelandic dári, Danish dåre.