Webster’s Revised Unabridged Dictionary · 1913
Theism
The′ism (thē′ĭz'm), n. [From Gr. θεός God; probably akin to θέσσασθαι to pray for, θέσφατος spoken by God, decreed: cf. F. théisme. Cf. Enthusiasm, Pantheon, Theology.] The belief or acknowledgment of the existence of a God, as opposed to atheism, pantheism, or polytheism.