affirmatory

[ uh-fur-muh-tawr-ee, -tohr-ee ]

/ əˈfɜr məˌtɔr i, -ˌtoʊr i /

Origin of affirmatory

First recorded in 1645–55; affirmat(ion) + -ory¹

Patty, holding fast to affirmatory personal knowledge, retorted that the thing had been done.

Hide and Seek |Wilkie Collins
She hesitated for a second; then, with an affirmatory murmur, accepted the proffered arm.

The Tidal Wave and Other Stories |Ethel May Dell
He used the Quaker poet's name as if it were an affirmatory oath.

Six Girls and the Tea Room |Marion Ames Taggart
Her face turned pale for a moment and her lips trembled, but she spoke an affirmatory word only, and waited.

In Direst Peril |David Christie Murray

And, receiving an affirmatory nod from the preoccupied gambler, he went on.

The Twins of Suffering Creek |Ridgwell Cullum