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Faith & RitualGreekEnglish

Monotheism

/ˈmɑːnoʊθiɪzəm/noun

The belief that only one god exists.

The Greek roots

μόνος
mónos
single, alone
+
θεός
theós
god

Literally: one-god doctrine

The story of the word

Greek never needed the word; it was built out of Greek parts in England in the 1660s, by Henry More, who wanted a clean opposite for polytheism in an argument about pagan religion. The pattern is common in the vocabulary of religion: the category gets named from outside, by someone comparing systems rather than living in one. Judaism, Christianity and Islam all long predate any word for what they share.

How it travelled
Ancient Greek → scientific coinage → English
First recorded
1660s

Same family

polytheismtheismtheologypantheonmonopoly

In a sentence

The lecture traced how Israelite religion moved toward monotheism over several centuries.

Built on the same root

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