An Etymological Dictionary of the German Language/Annotated/und
und, conjunction, ‘and,’ from the equivalent Middle High German unt, unde, Old High German unta, unti (inti, enti); corresponding to Old Saxon ęndi, Dutch en, Anglo-Saxon and English and. Sanscrit útha, ‘also, further, and,’ points, like Anglo-Saxon and English and, to Aryan nthá.