de-

From Latin dē-, from the preposition dē (“of”, “from”). For sense development, compare Old English æf-, which was a similar prefix.

• (stressed) IPA^(key): /dɛ/, /diː/
• (unstressed) IPA^(key): /də/, /dɪ/

de-

2. reversal, undoing

   ‎de- + ‎couple → ‎decouple

   ‎de- + ‎align → ‎dealign

   ‎de- + ‎ice → ‎de-ice

   ‎de- + ‎baptize → ‎debaptize

4. to remove from, removed

   ‎de- + ‎bus → ‎debus

   ‎de- + ‎bark → ‎debark

   ‎de- + ‎benzylate → ‎debenzylate

   ‎de- + ‎arterialization → ‎dearterialization

6. Intensifying

   ‎de- + ‎fraud → ‎defraud

   ‎de- + ‎complex → ‎decomplex

   ‎de- + ‎numerate → ‎denumerate

   ‎de- + ‎pauperize → ‎depauperize

   ‎de- + ‎prostrate → ‎deprostrate

   ‎de- + ‎specificate → ‎despecificate

8. derived from, of

   ‎de- + ‎substantival → ‎desubstantival

   ‎de- + ‎verbal → ‎deverbal

   ‎de- + ‎mise → ‎demise

10. down, downward

    ‎de- + ‎scando → ‎descend

    ‎de- + ‎press → ‎depress

• (undo): un-, dis-, in-
• (remove): des-, un-
• (from): off-, out-, ab-, apo-, away, off

• (antonym(s) of “undo”): re-
• (antonym(s) of “remove”): em-

NOTE: Words using the prefix de- do not necessarily use the prefixes given here when translated. See individual words for more accurate translations.

• ed, Ed, E.D., Ed., ED, ed-, -èd, -ed, ed., @ed

de-

1. marks a singular reflexive possessor; his/her/its own

   ‎de- + ‎-taʼ (“father”) → ‎detaʼ (“his/her/its own father”)

2. marks a singular reflexive object of a postposition

   ‎de- + ‎-kʼe (“on”) → ‎dekʼe (“on him/her/itself”)

• Kari, James (1990), Ahtna Athabaskan Dictionary, Fairbanks, Alaska: Alaska Native Language Center, →ISBN, page 35

From Latin dē-, from dē (“of, from”).

IPA^(key): (Central, Balearic) [də]

• IPA^(key): (Valencia) [de]

de-

1. denoting removal
2. denoting lowering
3. denoting loss
4. denoting negation
5. denoting intensification

From Proto-North Iroquoian *te, ultimately from Proto-Iroquoian *teː.

de-

1. duplicative prefix

From Latin de.

de-

1. de-

   Synonym: af-

• u-
• dis-
• des-

• “de-” in Den Danske Ordbog

• IPA^(key): /deː/

• Audio:

  (file)

de-

1. de-

Ultimately from Latin de.

• IPA^(key): [de(ː)]

• Audio (Germany (Berlin)):

  (file)

de-

1. de-

From Dutch de-, from Latin de-.

• IPA^(key): [de]
• Hyphenation: dé

dé

1. de-

• “de-”, in Kamus Besar Bahasa Indonesia [Great Dictionary of the Indonesian Language] (in Indonesian), Jakarta: Agency for Language Development and Cultivation – Ministry of Education, Culture, Research, and Technology of the Republic of Indonesia, 2016

From Latin dē-, from dē (“of”, “from”).

• IPA^(key): /de/
• Hyphenation: de-

de-

1. denoting:
   1. removal

      ‎de- + ‎nuclearizzare (“to nuclearize”) → ‎denuclearizzare (“to denuclearize”)

   2. movement downwards; lowering

      ‎de- + ‎grado (“grade”, “level”) → ‎degradare (“to gradually diminish in height”)

   3. privation; a-

      ‎de- + ‎trarre (“to draw, extract”) → ‎detrarre (“to subtract”)

   4. negation; un-

      ‎de- + ‎crescita (“growth”) → ‎decrescita (“degrowth”)

   5. intensifying

      ‎de- + ‎limitare (“to contain, restrict”) → ‎delimitare (“to delimit”)

2. (chemistry) denoting subtraction of one or more atoms, radicals or molecules:

   ‎de- + ‎carbossilazione (“carboxylation”) → ‎decarbossilazione (“decarboxylation”)

• ed, ed.

From dē (“of; from”).

• (Classical Latin) IPA^(key): [deː]
• (modern Italianate Ecclesiastical) IPA^(key): [de]

dē-

1. of; from
   1. off; (away/remove) from

The vowel becomes short before ⟨h⟩ and any vowel but ⟨i⟩.

• → English: de-
• French: de-, dé- (partially)
• Italian: de-, di-
• Portuguese: de-
• Spanish: de-
• → Swedish: de-

• IPA^(key): /tə/

Proto-Athabaskan *də- (valency decreasing suffix), from Proto-Na-Dene *də- (signaling valency decrease)

de-

2. The de-classifier, one of four classifiers which obligatorily appear in every Lower Tanana verb with a variety of purposes. The de-classifier has the following uses:
   1. Appears in many intransitive verbs
   2. Appears in iterative forms of verbs normally formed with ∅-classifier
   3. Forms passive verbs
   4. Forms reflexive verbs
   5. Forms intransitive verbs from transitive verbs
   6. (With k'o-) Forms perambulative verbs
   7. (With the n-qualifier) Forms errative verbs; marks an action as accidental
   8. Forms various transitive and intransitive verbs with nominal incorporates

• In glosses and reference material, this classifier is often written as "D."
• Appears as t- before a glottal stop.

• l-
• ɬ-
• ∅-

• Kari, James et al. (2024), Kari, James, editor, Lower Tanana Dene Dictionary, Fairbanks, Alaska: Alaska Native Language Center, →ISBN, page 101

Possibly related to dek (“up”).

de-

1. at an elevation

• Kari, James et al. (2024), Kari, James, editor, Lower Tanana Dene Dictionary, Fairbanks, Alaska: Alaska Native Language Center, →ISBN, page 115

de-

1. A "subsidiary" prefix meaning "in such a circumstance or condition".

• Often appears in derivates of the roots 'an, dhen, ni, t'a, and yok.

• Kari, James et al. (2024), Kari, James, editor, Lower Tanana Dene Dictionary, Fairbanks, Alaska: Alaska Native Language Center, →ISBN, page 115

Compare Ahtna de- (“singular reflexive possessed prefix”), Navajo ʼádi- (“reflexive verb prefix”).

de- (plural xede-)

1. (nominal prefix) Marks a singular reflexive possessor; his/her own

   dekayex ― his/her own country

   deto' ― his/her own father

2. (verbal prefix) A benefactive reflexive prefix; for one's benefit
3. (verbal prefix) oneself, one's own
4. (postpositional prefix) Marks a singular reflexive object of a postposition; to/for oneself

• ede-

• Kari, James et al. (2024), Kari, James, editor, Lower Tanana Dene Dictionary, Fairbanks, Alaska: Alaska Native Language Center, →ISBN, pages 115-116

Compare Ahtna de-, of identical usage.

de-

2. A "connective" prefix appearing in several compound or deverbal nouns.

• Kari, James et al. (2024), Kari, James, editor, Lower Tanana Dene Dictionary, Fairbanks, Alaska: Alaska Native Language Center, →ISBN, page 116

de-

1. Appears in several interrogative words.

• Kari, James et al. (2024), Kari, James, editor, Lower Tanana Dene Dictionary, Fairbanks, Alaska: Alaska Native Language Center, →ISBN, page 116

From English de-, from Latin dē (“of, from”).

• IPA^(key): /de/

de-

1. (obsolete) de- (reversal, undoing or removing)

   Synonym: nyah-

   deaktifkan ― deactivate

Borrowed from Old French de-, from a combination of Latin de- and dis-.

• IPA^(key): /dɛː-/, /dɛ-/

de-

1. Forms words denoting negativity, reversal or removal; dis-, de-.

   Synonym: dis-

2. Intensifies words with a negative connotation; dis-, de-.

   Synonym: dis-

• Because Old French de- sometimes comes from des-, this prefix may be used interchangeably with dis-.

• English: de-

• “de-, pref.”, in MED Online, Ann Arbor, Mich.: University of Michigan, 2007.

de-

1. de-

• “de-” in The Bokmål Dictionary.

de-

1. de-

• “de-” in The Nynorsk Dictionary.

From Latin dis-.

de-

1. alternative form of des-
2. indicating that an action is done more strongly or more vigorously

   ‎de- + ‎brisier (“to break”) → ‎debrisier (“to break”)

• French: dé-

Latin dē-.

• IPA^(key): /dɛ/

• Audio:

  (file)

• Rhymes: -ɛ
• Syllabification: de-

de-

1. de-, dis-

   Synonyms: roz-, od-

   ‎aktywować + ‎de- → ‎dezaktywować

• “de-”, in Polish dictionaries at PWN‎^[1] (in Polish)

From Latin dē-.

de-

1. de-

Inherited from Latin dē-.

• IPA^(key): /de/ [d̪e]
• Syllabification: de-

de-

1. de-

• “de-”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8.1, Royal Spanish Academy [Spanish: Real Academia Española], 15 December 2025

From Latin dē-, from the preposition dē (“of”, “from”), through loan words mainly from French.

de-

1. de-

• e.d., ed

Borrowed from Spanish de (“of”).

• (Standard Tagalog) IPA^(key): /de/ [d̪ɛ]
• Syllabification: de-

de- (Baybayin spelling ᜇᜒ)

1. prepositional particle added to indicate possession of quality or object

   ‎de- + ‎baterya (“battery”) → ‎de-baterya (“with battery; powered by battery”)

   ‎de- + ‎gulong (“wheel”) → ‎de-gulong (“with wheels”)

   ‎de- + ‎kahoy (“wood”) → ‎de-kahoy (“wooden”)

   ‎de- + ‎koryente (“electricity”) → ‎de-koryente (“electrical”)

   ‎de- + ‎kolor (“color”) → ‎de-kolor (“colored”)

de-

1. one