Usurp vs Oust - What's the difference?

As verbs the difference between usurp and oust

is that usurp is to seize power from another, usually by illegitimate means while oust is to expel; to remove.

(en verb)

To seize power from another, usually by illegitimate means.

To use and assume the coat of arms of another person.

(obsolete) To make use of.

* 1662 , , Appendix, A Collection of Several Philosophical Writings of Dr. Henry More, p. 149:

(en verb)

To expel; to remove.

The protesters became so noisy that they were finally ousted from the meeting.

* banish, dismiss, eject, exclude, reject

* accept, harbor, shelter

* oustee * ouster