köken: From Middle High German betriegen, from Old High German bitriogan, from Proto-West Germanic *bidreugan. Equivalent to be- + trügen. The modern -ü- in this verb chiefly follows the development in the rhyming word lügen (“to lie”). It was reinforced by the noun Betrug and by the 2nd and 3rd person-singular forms (as in lügen itself, which compare).
aile: Betrüger, Betrügung
Sie betrügt dich mit ihrer falschen Fürsorge.
Du betrügst dich, wenn du noch auf Besserung hoffst.
Er hat die Firma um mehrere tausend Euro betrogen.
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.
From Proto-Baltic *mil-, *mul- (with an extra -k), from Proto-Indo-European *melh₂-, *ml̥h₂- (“to push, to crush, to grate, to grind”) (whence also malt (“to grind, to mill”), q.v.). The semantic evolution was probably “to grind” > “to get lost” (via a comparison between grinding movements and the aimless motion of someone who got lost; see the etymology of maldināt (“to mislead, to deceive”)) >…