An authority who makes such an assertion.
A dogmatic and unproved proposition or dictum that is accepted solely on the authority of someone who is known to have asserted it.
A declaration or assertion.
A solemn promise to perform some act, or behave in a specified manner, especially a promise to live and act in accordance with the rules of a religious order.
To declare publicly that one has made a vow, usually to show one's determination or to announce an act of retaliation.
To make a vow; to promise.
To make a vow regarding (something).