1) German dialect 2) Germanic language of yore 3) Language of Germany 4) Language that gave us quartz 5) Medieval language 
Old Saxon, also known as Old Low German, is a Germanic language and the earliest recorded form of Low German. It belongs to the West Germanic branch and is most closely related to the Anglo-Frisian languages. It is documented from the 8th century until the 12th century, when it evolved into Middle Low German. It was spoken on the north-west coast ...
[n] - Low German prior to 1200
noun Low German prior to 1200