demoniac energy.    From Wordnet, Princeton University. 

Adjective : demoniac laughter.    From Dictionary.com. 

A more perplexing difficulty arises from his handling of the cases of so-called demoniac possession.    From Wordnik.com.  [The Life of Jesus of Nazareth] Reference

It seemed to him for a moment that Osmond had a kind of demoniac imagination; it was impossible that without malice he should have selected so unusual a topic.    From Wordnik.com.  [Chapter XLVIII] Reference

'demoniac' people, in the passus beginning 'they declare the world to be without a Truth, without a resting-place, without a Ruler,' and ending.    From Wordnik.com.  [The Vedanta-Sutras with the Commentary by Ramanuja — Sacred Books of the East, Volume 48] Reference

"What demoniac design had you on my defenseless self?".    From Wordnik.com.  [The Diamond Coterie] Reference

Or by the owl, as he greeted the moon with demoniac laughter.    From Wordnik.com.  [Elson Grammar School Literature v4] Reference

Well, well -- I will not blacken these pages with demoniac ravings.    From Wordnik.com.  [The International Monthly, Volume 3, No. 1, April, 1851] Reference

But the arrival of the dark rider brought the demoniac singing to an end.    From Wordnik.com.  [Legend Land, Volume 2 Being a Collection of Some of The Old Tales Told in Those Western Parts of Britain Served by The Great Western Railway] Reference

For five solid minutes the broncho redoubled his scheme of demoniac fury.    From Wordnik.com.  [The Furnace of Gold] Reference

For I have discovered the true exorcism for demoniac influence in putting.    From Wordnik.com.  [Punch, or the London Charivari, Vol. 158, 1920-03-20] Reference

The wretch cowered into silence, but his eyes glowed with fairly demoniac fury.    From Wordnik.com.  [At the Time Appointed] Reference

The poor demoniac had clutched the radiant cross, and fell with it to the ground.    From Wordnik.com.  [Saronia A Romance of Ancient Ephesus] Reference

Just as they were about to put off, a burst of demoniac laughter rung in their ears.    From Wordnik.com.  [The International Monthly, Volume 2, No. 4, March, 1851] Reference

Here the demoniac enthusiasm of both sides exceeded even the terrible exhibitions of Languedoc.    From Wordnik.com.  [Cathedrals and Cloisters of the South of France, Volume 1] Reference

Nero, and incarnated in human bodies the myriads of demoniac spirits that walk the earth to-day?.    From Wordnik.com.  [The Christian Foundation, Or, Scientific and Religious Journal, February, 1880] Reference

 She fell instantly to the ground, a product of the demoniac being relieved of her hellish puppeteer.    From Wordnik.com.  [Rev. Jasper Pickery and Three Manifestations of the Devil] Reference

Still on they came, and now the near woods resounded through all their aisles with their demoniac cry.    From Wordnik.com.  [Journeys Through Bookland, Vol. 7] Reference

Raising himself to a sitting posture, he threw his arms above his head, and shrieked with a demoniac fury.    From Wordnik.com.  [The Beetle] Reference

The belief in demoniac possession and the belief in witches were later developments from this same doctrine.    From Wordnik.com.  [Primitive Psycho-Therapy and Quackery] Reference

It is the demoniac element, the raving of some particular demon, that creates greatness either in men or nations.    From Wordnik.com.  [The Atlantic Monthly, Volume 14, No. 83, September, 1864] Reference

Pen cannot describe the concentrated frenzy of hatred with which the speaker dwelt upon the name, -- it was demoniac.    From Wordnik.com.  [The Beetle] Reference

The Caliph of the West, filled with indignation at the demoniac cruelty of Velasquez, restored his captive to liberty.    From Wordnik.com.  [History of the Moors of Spain] Reference

The lyrical portions, of the work -- introduced in connection with the demoniac characters -- are inferior to the rest.    From Wordnik.com.  [The Atlantic Monthly, Volume 16, No. 96, October 1865] Reference

No one should forget that some of the greatest sinners, even the demoniac saints themselves, often had humble beginnings.    From Wordnik.com.  [The Status Civilization] Reference

His teeth were clenched, and the muscles of his lips drawn over them gave him an expression half laughing, half demoniac.    From Wordnik.com.  [The Kentucky Ranger] Reference

Whereupon I quickly ended my imaginative discourse upon demoniac donkeys, and with no appearance of haste we walked away.    From Wordnik.com.  [The Aztec Treasure-House] Reference

At Chetwynde she had shown some weakness, but in her attitude to him he had discovered and had adored her demoniac beauty.    From Wordnik.com.  [The Cryptogram A Novel] Reference

A constant supply of small hand-cars come up with demoniac groans and shrieks from the bowels of the earth through the shaft.    From Wordnik.com.  [Acadia or, A Month with the Blue Noses] Reference

But as she raised her back, and spat at her master's visitors from under her chubbed tail, she looked demoniac enough for anything.    From Wordnik.com.  [Julia And Her Romeo: A Chronicle Of Castle Barfield From "Schwartz" by David Christie Murray] Reference

"Now," Madame exclaimed, with the wild glare of a demoniac, "I will sit astraddle her waist, and Frank must do so also, facing me.".    From Wordnik.com.  [The Power of Mesmerism A Highly Erotic Narrative of Voluptuous Facts and Fancies] Reference

The murderer arose from his appalling work, and his loathsome face assumed, beneath his mask, an expression of demoniac satisfaction.    From Wordnik.com.  [City Crimes or Life in New York and Boston] Reference

It was not necessary that the demoniac should be represented in the moment of recovery, if its certainty could be expressed by other means.    From Wordnik.com.  [Blackwood's Edinburgh Magazine - Volume 54, No. 338, December 1843] Reference

First division to the charge of the rebels, who now rushed on with redoubled fury and with demoniac yells, carrying everything before them.    From Wordnik.com.  [Three Years in the Sixth Corps A Concise Narrative of Events in the Army of the Potomac, from 1861 to the Close of the Rebellion, April, 1865] Reference

To his childish sense the incongruity of one gifted with demoniac powers being helpless to prevent the depredations of his own domestic animal did not appeal.    From Wordnik.com.  [Julia And Her Romeo: A Chronicle Of Castle Barfield From "Schwartz" by David Christie Murray] Reference

Then, drawing from the folds of his dress a blood stone ring, he placed it near the nostrils of the demoniac, commanding the legion to come out of him, chanting.    From Wordnik.com.  [Saronia A Romance of Ancient Ephesus] Reference