Definify.com
Webster 1913 Edition
Usurp
U-surp′
,Verb.
 T.
 [
imp. & p. p. 
Usurped
; p. pr. & vb. n. 
Usurping
.] [L. 
usurpare
, usurpatum
, to make use of, enjoy, get possession of, usurp; the first part of usurpare 
is akin to usus 
use (see Use
, n.): cf. F. usurper
.] To seize, and hold in possession, by force, or without right; 
as, to 
 usurp 
a throne; to usurp 
the prerogatives of the crown; to usurp 
power; to usurp 
the right of a patron is to oust or dispossess him.Alack, thou dost 
usurp 
authority. Shakespeare
Another revolution, to get rid of this illegitimate and 
usurped 
government, would of course be perfectly justifiable. Burke.
☞ Usurp is applied to seizure and use of office, functions, powers, rights, etc.; it is not applied to common dispossession of private property. 
Syn. – To arrogate; assume; appropriate. 
 U-surp′
,Verb.
 I.
 To commit forcible seizure of place, power, functions, or the like, without right; to commit unjust encroachments; to be, or act as, a usurper. 
The parish churches on which the Presbyterians and fanatics had 
usurped
. Evelyn.
And now the Spirits of the Mind
Are busy with poor Peter Bell;
Upon the rights of visual sense
More terrible than magic spell.
Are busy with poor Peter Bell;
Upon the rights of visual sense
Usurping
, with a prevalenceMore terrible than magic spell.
Wordsworth.
Webster 1828 Edition
Usurp
USURP'
,Verb.
T.
 To seize and hold in possession by force or without right; as, to usurp a throne; to usurp the prerogatives of the crown; to usurp power.  To usurp the right of a patron, is to oust or dispossess him.
Vice sometimes usurps the place of virtue.
[Usurp is not applied to common dispossession of private property.]
Definition 2025
usurp
usurp
English
Verb
usurp (third-person singular simple present usurps, present participle usurping, simple past and past participle usurped)
- 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, Henry More, An Antidote Against Atheism, Appendix, A Collection of Several Philosophical Writings of Dr. Henry More, p. 149:
- " […] especially considering that even Matter it self, in which they tumble and wallow, which they feel with their hands and usurp with all their Senses […] "
 
 
 -  1662, Henry More, An Antidote Against Atheism, Appendix, A Collection of Several Philosophical Writings of Dr. Henry More, p. 149:
 
Translations
to seize power
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