A'the·ize intransitive verb To discourse, argue, or act as an atheist. [ R.] -- A'the*i`zer noun Cudworth. Found on http://www.encyclo.co.uk/webster/A/139
A'the·ize transitive verb To render atheistic or godless. [ R.] « They endeavored to atheize one another. Berkeley. » Found on http://www.encyclo.co.uk/webster/A/139