ASSEVERATION
assertion, averment, asseveration
(noun) a declaration that is made emphatically (as if no supporting evidence were necessary)
Source: WordNet® 3.1
Etymology
Noun
asseveration (countable and uncountable, plural asseverations)
An earnest affirmation or declaration of support.
Synonyms
• (earnest affirmation): averment, avowal
Source: Wiktionary
As*sev`er*a"tion, n. Etym: [L. asseveratio.]
Definition: The act of asseverating, or that which is asseverated; positive
affirmation or assertion; solemn declaration.
Another abuse of the tongue I might add, -- vehement asseverations
upon slight and trivial occasions. Ray.
Source: Webster’s Unabridged Dictionary 1913 Edition