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Prefix · god · divine

theo-

Means "god": theology, theocracy, theism, theodicy, theocentric.

Scientific

Written by Bryan López, English teacher · Updated

What does the prefix theo- mean?

Theo- comes from the Greek theos, which means "god". It appears in religious, philosophical and political vocabulary, always related to God or the divine.

From religion to philosophy

Theo- connects religion and philosophy. It is used both to talk about the study of faith and to name the different ways of believing, or not believing, in one or several gods. The root is also behind well-known first names, like Theodore and Theodora, which mean "gift of God".

How it is used

Combines with Greek roots in religious, philosophical, and political vocabulary:

  • theo- + religion/government
    ology → theologycracy → theocracyism → theismcentric → theocentricsophy → theosophy
  • prefix + theo- (suffix -theism)
    mono → monotheismpoly → polytheisma → atheismpan → pantheism

Pronunciation: /θiː.oʊ/.

How it is pronounced

theo-/θiː.oʊ/

Tap the button to hear how the prefix sounds. Each word in the table has its own audio.

Examples

  • ologytheologyShe studied theology to understand the history and doctrine of major world religions.
  • cracytheocracyIn a theocracy, religious leaders hold ultimate political authority in the name of God.
  • ismtheismTheism holds that at least one God exists and remains involved in the universe.
  • dicytheodicyTheodicy tries to explain why an all-good God would permit suffering in the world.
  • sophytheosophyTheosophy blends mysticism, philosophy, and esoteric spiritual traditions from many cultures.
  • centrictheocentricMedieval European thought was deeply theocentric, placing God at the heart of all knowledge.
  • a- + theo-atheismAtheism is the absence of belief in any god or divine beings.

Common mistakes

confusing "theism" with "theology"
"theism" = the belief in god/gods (personal or philosophical stance); "theology" = the academic, systematic study of religion

"Theism" (theo- = god + -ism = belief): a philosophical position holding that one or more gods exist. "Theology" (theo- = god + -logy = study): the systematic academic discipline studying the nature of God, religious belief, and doctrine. You can hold theism without studying theology, and theologians can study religion without being personally devout.

A trick to remember it

Think of theology, the study of God: theo- = god. theology, atheist (a- + theo-).

Practise what you learned

Exercise 1 · Form the word

Iran is often described as a ___, where religious leaders hold supreme political authority.

Hint: theo- + cracy = ?

Exercise 2 · Pick the right one

How does "monotheism" differ from "polytheism"?

Frequently asked questions

What does the prefix theo- mean in English?

The prefix theo- means "god": theology, theocracy, theism, theodicy, theocentric.

How do you pronounce theo-?

The prefix theo- is pronounced /θiː.oʊ/. For example, "theology".

Can you give an example of a word with theo-?

"ology" becomes "theology". It is a typical example of the theo- prefix.

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