adj
noun
Freq #121075
Meanings
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1
adj
of, resembling, or apparently possessed by a demon; frenzied and terrifying
A demoniac fury transformed his normally calm expression.
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2
noun
a person believed to be possessed or controlled by a demon
In the old account, the villagers brought the demoniac to a priest for help.
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Etymology
From Middle English demoniak and Old French demoniaque, ultimately from Late Latin daemoniacus ("possessed by a demon"), based on Latin daemon and Greek daimon. The adjective's literal religious sense broadened into a figurative description of wild, frenzied, or terrifying behavior.