An Etymological Dictionary of the German Language/Annotated/Teil

by Friedrich Kluge

Teil, masculine and neuter, ‘part, share, portion,’ from the equivalent Middle High German and Old High German teil, masculine and neuter; corresponding to Gothic dails, daila, feminine, Old Saxon dêl, masculine, Dutch deel, neuter, Anglo-Saxon dœ̂l (dâl), and English deal (dole). Teutonic dai-li (lo) seems to point to an Aryan root dhai (see tilgen), which is proved by Old Slovenian dělŭ, ‘part.’ —