Pennsylvania Dutch Dictionary: der

der ˉ relative pronoun
1. who
  Example:
  1. Es waar en Mann gewest, — hot en Beckerei ghatt, un des waar in e Schteddel aardlich naegscht bei uns, aardlich naegscht do an die Reinholds. There was a man, who had a bakery, and this was in a town quite nearby (to) us, quite near here to Reinholds.
Etymology: G der
See also as, das, die, wu.