wiener (n.)

1900, shortening of wienerwurst (1874, American English), from German Wiener "of Vienna" (from Wien "Vienna," from Latin Vindo-bona; see Vienna) + Wurst "sausage" (see wurst). Colloquial wienie is attested by 1911. Extensive pejorative senses developed from its penis-like shape. Wiener roast is from 1910.