i Register
In some senses, usurp is marked as obsolete. Watch for register when choosing this word.
verb
To seize power from another, usually by illegitimate means.
[S]o he dies, But soon revives, Death over him no power Shall long usurp […]
Most Republicans in Congress are complying as Mr. Trump usurps the power of the national legislature, as laid out in Article 1 of the Constitution.
To use and assume the coat of arms of another person.
To take the place rightfully belonging to someone or something else.
But if now / You ſhould (as cruell fathers do) proclame / Your right, and Tyrant like uſurp the glory / Of my peculiar honours, not deriv'd / From ſucceſſary, but purchas'd with my bloud, / Then I muſt ſtand firſt Champion for my ſelfe, / Againſt all interpoſers.
Jones answered all his questions with much civility, though he never remembered to have seen the petty-fogger before; and though he concluded, from the outward appearance and behaviour of the man, that he usurped a freedom with his betters, to which he was by no means intitled.
To make use of.
"[…] 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 […]"