[ dee-muhn ]
/ ˈdi mən /
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See synonyms for: demon / demons on Thesaurus.com

of, pertaining to, characteristic of, or noting a demon.
possessed or controlled by a demon.
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Origin of demon

1350–1400; Middle English <Latin daemonium<Greek daimónion, thing of divine nature (in Jewish and Christian writers, evil spirit), neuter of daimónios, derivative of daímōn;(def. 6) <Latin; see daemon

Other definitions for demon (2 of 2)


variant of demono- before a vowel: demonism.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021


What does demon- mean?

Demon- is a combining form used like a prefix meaning “demon.” It is used in a few technical terms, especially in theology.

Demon- comes from the Greek daimónion, meaning “thing of divine nature” and ultimate source of the English word demon. Among Jewish and Christian writers, daimónion was used to mean “evil spirit.”

Demon- is a variant of demono-, which loses its –o– when combined with words or word elements beginning with vowels.

Want to know more? Read our Words That Use demono- article.

Examples of demon-

One example of a theological term that features the combining form demon- is demonism, which can refer to the belief in or study of demons.

The first part of the word, demon- means “demon,” as we’ve seen. What about the -ism part of the word? The suffix -ism can refer to a kind of “theory” or a “devotion or adherence” to something. So, demonism literally translates to “demon devotion.”

What are some words that use or are related to the combining form demon-?

What are some other forms that demon- may be commonly confused with?

Not every word that begins with the exact letters demon- is necessarily using the combining form demon- to denote “demon,” such as demonym or demonetize. Learn their meaning and uses at our entries for the words.

Break it down!

The suffix -ize forms verbs and has a general meaning of “to make (into).” With this and the meaning of demon- in mind, what does demonize mean?

How to use demon in a sentence

British Dictionary definitions for demon

/ (ˈdiːmən) /


Word Origin for demon

C15: from Latin daemōn evil spirit, spirit, from Greek daimōn spirit, deity, fate; see daemon
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012