contaminate

To make something dangerous or toxic by introducing impurities or foreign matter.

This water is contaminated. It isn't safe to drink.

Bombs and munitions meanwhile contain toxic substances that contaminate soil, water, and vegetation.

To soil, stain, corrupt, or infect by contact or association.

Shall we now Contaminate our figures with base bribes?

I would neither have simplicity imposed upon, nor virtue contaminated.

To make unfit for use by the introduction of unwholesome or undesirable elements.

Do not contaminate the peanut butter with the jelly.

To infect, usually of a deadly virus.

Contaminated.

And that this body conſecrate to thee, By Ruffian Luſt ſhould be contaminate!

Dirty, sinful, wicked, gross, etc.