Monotheism
Pronunciation
Alternative forms
Origin
A learned 17th-century coinage, - + theism, from (μονός (monós, "one")) and (θεός (theós, "god, deity") + -ισμός) The term parallels the earlier polytheism, atheism (the simplex theism being slightly later).
The earliest known use is by Henry More, ca. 1660, in explicit juxtaposition with both atheism and polytheism.