The act of assuming, or taking to or upon oneself; the act of taking up or adopting. / The act of taking for granted, or supposing a thing without proof; a supposition; an unwarrantable claim.

plural of assumption

The Assumption of Mary, the mother of Jesus, into heaven, a Catholic dogma. / A Catholic holy day of obligation (August 15) celebrating the Assumption of Mary.

Held as true or valid without evidence. / Forward or presumptuous.

plural of assumpt

(obsolete) That which is assumed; an assumption.

(obsolete, transitive) To take up; to elevate; to assume.

present participle of assumpt

simple past tense and past participle of assumpt

In an assumptive manner.