atheize

verb2

1. •
   (rare) To render (someone) atheistic.

   • After this manner, authority vvorking in a circle, they endeavoured to atheize one another. — 1732
2. •
   (rare) To become atheistic.

   • A considerable observation of Plato's, that it is not only moral vitiosity, which inclines men to atheize, but also an affectation of seeming wiser than the generality of mankind; […] — 1678