What is the English translation of the Latin phrase "Die Gnann"?

Could it be that this is a German phrase?

"Gnann" is a German family name:

http://www.ancestry.com/learn/facts/Fact.aspx?fid=10&yr=0&ln=Gnann

The phrase "die Gnann" also occurs in reference to a German-made tool,
as in "die Ganann-o-mat."

http://bikemag.com/features/gear/magura_gnannomat/

://www.google.com/search?client=safari&rls=en&q=%22die+Gnann%22&ie=UTF-8&oe=UTF-8

Here, "die" means "the" in German.

Search strategy: "die Gnann" 
Search strategy: gnann

Typo: "die Gnann-o-mat" was meant.

If this is Latin, it is probably not a quote from Caesar's time; if
the quote came directly from that time, I would expect the name,
"Gnann," to be Latinized. That said, "die Gnann" might be part of a
prepositional phrase, such as "on/from/during/by the day ("die") of
"Gnann." In that case, it might be referring to something like Gnann's
birthday.

You may need to provide more context to get a good answer.

Where does "die Gnann" appear?  Could it be a misspelling  - yours, or
on the original document, or maybe an abbreviation or mistaken
understanding of the letters?  "Gnann" looks strange for Latin and
German.
Perhaps you can add a clarification.
Intriquing ...