decentralize
Concise Oxford English Dictionary © 2008 Oxford University Press:
decentralize /diːˈsentrəlʌɪz/ (or decentralise)
▶verb (often as adj. decentralized) transfer (authority) from central to local government.
■ divide (a large organization) into smaller separate units.
– derivatives
decentralist noun & adjective,
decentralization noun.
decentralist noun & adjective,
decentralization noun.
'decentralize' also found in these Oxford entries:

