USURP
assume, usurp, seize, take over, arrogate
(verb) seize and take control without authority and possibly with force; take as one’s right or possession; “He assumed to himself the right to fill all positions in the town”; “he usurped my rights”; “She seized control of the throne after her husband died”
usurp
(verb) take the place of; “gloom had usurped mirth at the party after the news of the terrorist act broke”
Source: WordNet® 3.1
Etymology
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.
To take the place rightfully belonging to someone or something else.
(obsolete) To make use of.
Source: Wiktionary
U*surp", v. t. [imp. & p. p. Usurped; p. pr. & vb. n. Usurping.]
Etym: [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.]
Definition: 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. Shak.
Another revolution, to get rid of this illegitimate and usurped
government, would of course be perfectly justifiable. Burke.
Note: 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", v. i.
Definition: 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 Usurping, with a prevalence More terrible
than magic spell. Wordsworth.
Source: Webster’s Unabridged Dictionary 1913 Edition