demon

• IPA^(key): /ˈdiː.mən/

• Audio (Southern England):

  (file)

• Rhymes: -iːmən
• Homophone: daemon

From Middle English demon, a borrowing from Medieval Latin dēmōn, daemōn (“lar, familiar spirit, guardian spirit”), from Ancient Greek δαίμων (daímōn, “dispenser, god, protective spirit”). Displaced native Old English sċucca and Old English þyrs. Doublet of daimon.

• (now chiefly in reference to the ancient Greek spirit): daimon, daemon, dæmon

demon (plural demons)

1. An evil supernatural being.
   1. An evil being resident in or working for Hell; a devil. [from 10th c.]
      • 2007 December 2, April D. DeConick, “What the Gospel of Judas really says”, in The New York Times‎^[1], →ISSN, →OCLC, archived from the original on 23 November 2011, Essay‎^[2]:

        So what does the Gospel of Judas really say? It says that Judas is a specific demon called the "Thirteenth." In certain Gnostic traditions, this is the given name of the king of demons - an entity known as Ialdabaoth who lives in the 13th realm above the earth. Judas is his human alter ego, his undercover agent in the world. These Gnostics equated Ialdabaoth with the Hebrew Yahweh, whom they saw as a jealous and wrathful deity and an opponent of the supreme God whom Jesus came to earth to reveal.
        Whoever wrote the Gospel of Judas was a harsh critic of mainstream Christianity and its rituals. Because Judas is a demon working for Ialdabaoth, the author believed, when Judas sacrifices Jesus he does so to the demons, not to the supreme God. This mocks mainstream Christians' belief in the atoning value of Jesus' death and in the effectiveness of the Eucharist.

   2. (now chiefly historical) A false god or idol; a Satanic divinity. [from 10th c.]
   3. A very wicked or malevolent person; also (in weakened sense) a mischievous person, especially a child. [from 16th c.]
   4. A source (especially personified) of great evil or wickedness; a destructive feeling or character flaw. [from 17th c.]

      The demon of stupidity haunts me whenever I open my mouth.

   5. (in the plural) A person's fears or anxieties. [from 19th c.]
      • 2013 January 21, The Guardian:

        After a short spell on an adult psychiatric ward, she decided to find her own way to deal with her demons.

2. A neutral supernatural being.
   1. A person's inner spirit or genius; a guiding or creative impulse. [from 14th c.]
      • c. 1606–1607 (date written), William Shakespeare, “The Tragedie of Anthonie and Cleopatra”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, →OCLC, [Act II, scene iii]:

        Oh Anthony […] Thy Dæmon that thy spirit which keepes thee, is Noble, Couragious, high vnmatchable.

      • 2000, Phillip Pullman, The Amber Spyglass:

        “You saw her. And I picked her up,” Lyra said, blushing, because of course it was a gross violation of manners to touch something so private as someone else's dæmon.

   2. (Greek mythology) A tutelary deity or spirit intermediate between the major Olympian gods and mankind, especially a deified hero or the entity which supposedly guided Socrates, telling him what not to do. [from 16th c.]
   3. A supernatural being not considered to be inherently evil; a (non-Christian) deity. [from 19th c.]
   4. A hypothetical entity with special abilities postulated for the sake of a thought experiment in philosophy or physics.
      • 1874, William Thomson, 1st Baron Kelvin, “Kinetic Theory of the Dissipation of Energy” in Nature 9, 441-444:

        Let the orders now be that each demon is to stop all molecules from crossing his area in either direction except 100 coming from A, arbitrarily chosen to be let pass into B, and a greater number, having among them less energy but equal momentum, to cross from B to A.

3. Someone with great strength, passion or skill for a particular activity, pursuit etc.; an enthusiast. [from 19th c.]

   He’s a demon at the card tables.

   • 2021 May 29, David Hytner, “Chelsea win Champions League after Kai Havertz stuns Manchester City”, in The Guardian‎^[3], archived from the original on 28 August 2021:

     Chelsea defended like demons to snuff out Manchester City but this was a perfectly calibrated triumph, built upon a structured attacking approach, choosing the right moments to transition, and illuminated by the smoothness of Havertz’s technique.

4. (card games) A type of patience or solitaire (card game) played in the UK and/or US. [from 19th c.]

   Coordinate term: Canfield

   • 1924, EM Forster, A Passage to India, Penguin, published 2005, page 89:

     ‘That's much the best feeling to have.’ She dealt out the first row of ‘demon’.

5. Any of various hesperiid butterflies of the genera Notocrypta and Udaspes.

Meanings drawing on the neutral, ancient Greek conception now often distinguish themselves by the variant spellings daimon or daemon.

• For more quotations using this term, see Citations:demon.

• (evil being): See Thesaurus:demon
• (neutral being): genius, tutelary deity, see also Thesaurus:god and Thesaurus:spirit

• (evil being): See Thesaurus:demon
• (theoretical entity): Maxwell's demon

From distinct electron motion + -on.

demon (plural demons)

1. (physics) Acronym of distinct electron motion particle: a quasiparticle, a type of massless neutral electron excitation associated with superconductivity.

• Pines' demon on Wikipedia.Wikipedia

From Maxwell's demon; a derivation from “disk and execution monitor” is generally considered a backronym.

• daemon, dæmon

demon (plural demons)

1. (computing) Alternative spelling of daemon.

• Emond, monde, moned

From Latin daemon (“lar, genius, guardian spirit”), from Ancient Greek δαίμων (daímōn, “dispenser, god, protective spirit”). This etymology is incomplete. You can help Wiktionary by elaborating on the origins of this term.

• IPA^(key): /ˈdeː.mɔn/

• Audio:

  (file)

• Hyphenation: de‧mon

demon m (plural demonen or demons, no diminutive)

1. genius, lar
2. (uncommon) demon

   Synonyms: demoon, duivel

demon

1. genitive singular of demo

• moden

• dēmum

• (Classical Latin) IPA^(key): [ˈdeː.mɔn]
• (modern Italianate Ecclesiastical) IPA^(key): [ˈdɛː.mon]

dēmon m

1. accusative singular of dēmos

From Medieval Latin dēmōn, daemōn, from Ancient Greek δαίμων (daímōn). Doublet of tyme (“time”).

• IPA^(key): /dɛːˈmɔːn/

demon (plural demones)

1. demon, devil, malicious spirit
2. (rare) daimon, helpful spirit

• English: demon

• “dēmōn, n.”, in MED Online, Ann Arbor, Mich.: University of Michigan, 2007, retrieved 25 April 2018.

Borrowed from Ancient Greek δαίμων (daímōn).

demon m (definite singular demonen, indefinite plural demoner, definite plural demonene)

1. a demon

• demonisere

• demonisk

• “demon” in The Bokmål Dictionary.

Borrowed from Ancient Greek δαίμων (daímōn).

demon m (definite singular demonen, indefinite plural demonar, definite plural demonane)

1. a demon

• demonisere

• demonisk

• “demon” in The Nynorsk Dictionary.

• demun

From Latin daemōn, from Ancient Greek δαίμων (daímōn), though the plural seems to be from daemonia, the plural of the diminutive daemonium.^[1]

• IPA^(key): /ˈd̠ʲe.β̃un/
  • (Blasse) [ˈd̠ʲe.β̃un]
  • (Griffith) [ˈd̠ʲe.β̃øn]

demon m (genitive demuin, nominative plural demna)

1. demon, devil
2. the Devil
   • c. 800, Würzburg Glosses on the Pauline Epistles, published in Thesaurus Palaeohibernicus (reprinted 1987, Dublin Institute for Advanced Studies), edited and with translations by Whitley Stokes and John Strachan, vol. I, pp. 499–712, Wb. 9^d24

     arna dich cách assa dligud i n-adaltras tri láthar demuin et tri bar nebcongabthetit-si

     lest everyone go out of his duty into adultery through the Devil’s machination and through your incontinence

• Irish: deamhan
• Scottish Gaelic: deamhan

• Gregory Toner, Sharon Arbuthnot, Máire Ní Mhaonaigh, Marie-Luise Theuerkauf, Dagmar Wodtko, editors (2019), “demon”, in eDIL: Electronic Dictionary of the Irish Language

Learned borrowing from Latin daemon (“lar, genius, guardian spirit”), from Ancient Greek δαίμων (daímōn, “dispenser, god, protective spirit”). Sense 2 is a semantic loan from English daemon.

• IPA^(key): /ˈdɛ.mɔn/

• Audio:

  (file)

• Rhymes: -ɛmɔn
• Syllabification: de‧mon

demon m animal

1. (mythology, religion) demon (evil supernatural spirit)
3. (computing) daemon (running program that does not have a controlling terminal)

• “demon”, in Wielki słownik języka polskiego‎^[4] (in Polish), Instytut Języka Polskiego PAN
• “demon”, in Polish dictionaries at PWN‎^[5] (in Polish)

• dimon — regional, Moldova

Borrowed from Old Church Slavonic демонъ (demonŭ), from Ancient Greek δαίμων (daímōn). Compare also Aromanian demun.

• IPA^(key): [ˈdemon]

demon m (plural demoni)

1. demon
2. (figuratively) a despicable person

• diavol
• drac

• înger
• sfânt

• demonic

Borrowed from Greek δαίμονας (daímonas).

• IPA^(key): /děmoːn/
• Hyphenation: de‧mon

dèmōn m anim (Cyrillic spelling дѐмо̄н)

1. demon

• dèmōnskī

• dæmon (archaic)

Borrowed from Ancient Greek δαίμων (daímōn).

demon c

1. a demon (evil spirit)

   Drakar och Demoner

   Dragons and Demons

   A Swedish fantasy role-playing game (with similar cultural prominence to Dungeons & Dragons in some other countries).

2. (Greek mythology) a demon (neutral spirit)
3. (in the plural) a demon (personification of anxiety and the like)

   Hon kämpar mot sina inre demoner.

   She's fighting her inner demons.

• demoni
• demonisera
• demonisk

• jävel

• “demon”, in Svenska Akademiens ordböcker [Dictionaries of the Swedish Academy] (in Swedish)
• demon in Elof Hellquist, Svensk etymologisk ordbok (1st ed., 1922)