This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. An earnest affirmation or declaration of support.

n. The act of asseverating, or that which is asseverated; positive affirmation or assertion; solemn declaration.

n. The act of asseverating; positive affirmation or assertion; solemn declaration.

n. That which is asseverated; an emphatic assertion.

n. a declaration that is made emphatically (as if no supporting evidence were necessary)

"With this solemn asseveration, which is not lightly made, but which is the result of sixty years 'experience, I leave you."

declaration   

avouchment    affirmation    testimony    contention    disaffirmation    ipsedixitism    avowal    ipse dixit    charge    claim   

avowal    averment   

crimination    Marks    is`grok    pronouncement    side-glance    misquotation    birdsong    naïveté    pray'r    backbiting