supersize
(SOO.pur.syz)
v.
To exchange something for a much larger size; to increase in size substantially.
Example Citation:
The trouble is, it's not easy to be both efficient and big. As a corporation supersizes itself, it usually gets divided up into little duchies, which tend to pursue their own interests, not the company's.
James Surowiecki, "The Goldilocks Effect," The New Yorker, May 27, 2002