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demoniac

[dih-moh-nee-ak, dee-muh-nahy-ak] /dɪˈmoʊ niˌæk, ˌdi məˈnaɪ æk/
adjective, Also, demoniacal
[dee-muh-nahy-uh-kuh l] /ˌdi məˈnaɪ ə kəl/ (Show IPA)
1.
of, pertaining to, or like a demon; demonic:
demoniac laughter.
2.
possessed by or as by an evil spirit; raging; frantic.
noun
3.
a person seemingly possessed by a demon or evil spirit.
Origin
1350-1400
1350-1400; Middle English < Late Latin daemoniacus < Greek daimoniakós, equivalent to daimóni(os) pertaining to a daemon + -akos -ac
Related forms
demoniacally
[dee-muh-nahy-ik-lee] /ˌdi məˈnaɪ ɪk li/ (Show IPA),
adverb
Antonyms
1. angelic.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for demoniacal

demoniac

/dɪˈməʊnɪˌæk/
adjective
1.
of, like, or suggestive of a demon; demonic
2.
suggesting inner possession or inspiration: the demoniac fire of genius
3.
frantic; frenzied; feverish: demoniac activity
noun
4.
a person possessed by an evil spirit or demon
Derived Forms
demoniacally, adverb
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
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Word Origin and History for demoniacal

demoniac

adj.

c.1400, "possessed, insane," earlier (late 14c.) as a noun, "one who is possessed," from Late Latin daemoniacus (c.200), from Greek daimoniakos "possessed by a demon," from diamon (see demon).

Online Etymology Dictionary, © 2010 Douglas Harper
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