adulterate

Montaigne was a Gascon, and Gasconisms adulterate the purity of his French.

So little was drunk in England that it was not worth while to adulterate it.

Used in salads, paints, &c.; also to adulterate oil of almonds.

But methinks he speaks with a spruce Attic accent of adulterate Spanish.

The florets of this yield a beautiful pink dye (see above), and are sometimes used to adulterate hay saffron.

The London millers and bakers use immense quantities of bean flour to adulterate their flour and bread.

Since the reduction of duty on coffee it has nearly fallen into disuse, unless it be by the grocers to adulterate that article.

Inability to adulterate the air by throwing off matter from the heating surfaces.

He was in the same plight as the manufacturer who has to adulterate and misrepresent his product.

Sometimes these nuts are exported to British India, where kernels are used chiefly to adulterate almond kernels.