asseverate

• Either way, it worked Many years later, after the death of my mother, when I had occasion to asseverate the phrase (as Hugo winner Mark Clifton once put it), a friend asked me, "Precisely what the hell does that mean, 'Woof woof a goldfish Or, possibly, 'Woof woof, comma, a goldfish,'" I replied. —  F ;SF; - vol 087 issue 06 - December 1994
• Some SEO firms ease asseverate to substance "guaranteed crowning positions" in Google, patch in itself a dishonorable verify it does not attain significance anymore to rely on rankings as these dissent from locate to locate and machine to computer. —  xml's Blinklist.com
• And I offer to those who have so interpreted me a declaration which I trust may relieve them from all responsibility of this kind in future; I hereby declare, asseverate, affirm, and whatever else means to swear, that I never have offered and never intend to offer any history whatever of my personal experience, social, literary, or emotional, to the readers of any magazine, newspaper, novel, or correspondence whatever. —  The Atlantic Monthly, Volume 05, No. 28, February, 1860
• And I hereby do fully and freely declare and asseverate, that the Woods did not tremble to a kiss, and that the lovers did. —  Life of Lord Byron, Vol. 6 (of 6) With His Letters and Journals
• What I asseverate is, that his Excellency, having the same intercourse with his horse during his exercise, that he hath with his soldiers when training them, may form and break either to every feat of war which he chooses to practise, and accordingly that this noble charger is admirably managed. —  A Legend of Montrose

Roget's II: The New Thesaurus