(really) old pizza dough

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Took some pizza dough I had in the freezer out to defrost just before we went on vacation, hoping to make pizza for dinner the night before we left.  Well, that didn't happen, lol.  Now I have pizza dough that's been in the fridge for two weeks, presumably relatively dead. 

What can I do with it?  Add it to new doughs as a portion of 'old dough' for flavour?  Is it something I could make an essentially uleavened flatbread with at this point?  Advice/suggestions welcome!  Thanks.

try mixing with fresh dough one to one.  How many pizzas did you want to make?  

I used to bake up a pile of naked pizzas and freeze, then just top and bake a second time when I wanted a pizza.  :)

Some of my best pizzas have come from older dough.  2 weeks may be a little over the top but if it does rise, it will taste great!  I try to let my pizza dough age at least two days before using, 5 or 6 is better still.