different between devolution vs decentralisation

English

Borrowed from Middle French dévolution, from Medieval Latin devolutio, devolutionis, from Latin devolvo.

devolution (plural devolutions)

A rolling down.
A descent, especially one that passes through a series of revolutions, or by succession
The transference of a right to a successor, or of a power from one body to another.
(derogatory) Degeneration (as opposed to evolution).
(Britain, government) The transfer of some powers, and the delegation of some functions, from a central sovereign government to local government; eg. from Westminster to Scottish parliament and Welsh assembly.

From French décentralisation, decentralise +? -ation or de- +? centralisation

decentralisation (countable and uncountable, plural decentralisations)

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