disgruntled (adj.) Look up disgruntled at Dictionary.com
past participle adjective from disgruntle.
disguise (v.) Look up disguise at Dictionary.com
c.1300, from Old French desguiser (11c.) "disguise, change one's appearance," from des- "away, off" (see dis-) + guise "style, appearance" (see guise). Originally primarily "to put out of one's usual manner" (of dress, etc.). Oldest sense preserved in phrase disguised with liquor (1560s).
It is most absurdly said, in popular language, of any man, that he is disguised in liquor; for, on the contrary, most men are disguised by sobriety. [Thomas de Quincy, "Confessions of an English Opium-Eater," 1856]
Related: Disguised; disguising.
disguise (n.) Look up disguise at Dictionary.com
c.1400, "strange style of dress" (especially one meant to deceive), from disguise (v.).
disgust (n.) Look up disgust at Dictionary.com
1590s, from Middle French desgoust "strong dislike, repugnance," literally "distaste" (16c., Modern French dégoût), from desgouster "have a distaste for," from des- "opposite of" (see dis-) + gouster "taste," from Latin gustare "to taste" (see gusto).
disgust (v.) Look up disgust at Dictionary.com
c.1600, from Middle French desgouster "have a distaste for" (see disgust (n.)). Sense has strengthened over time, and subject and object have been reversed; the older use looks like this: "It is not very palatable, which makes some disgust it" (1660s). The reverse sense of "to excite nausea" is attested from 1640s. Related: Disgusted; disgusting.
dish (n.) Look up dish at Dictionary.com
Old English disc "plate, bowl, platter," from Latin discus "dish, platter, quoit," from Greek diskos "disk, platter" (see disk (n.)). A common West Germanic borrowing; Old High German borrowed the word as tisc "plate," but German tisch now means "table," in common with other later Romanic forms (such as Italian desco, French dais). Meaning "particular variety of food served" is first recorded mid-15c. Meaning "what one likes" is c.1900; that of "attractive woman" is 1920s. Meaning "concave reflector or antenna" attested from 1948.
dish (v.) Look up dish at Dictionary.com
"to serve food," late 14c., from dish (n.). Meaning "to disparage, denigrate" first recorded 1940s; probably from the same notion in figurative dish it out "administer punishment" (1934). Related: Dished; dishing.
dishabille (n.) Look up dishabille at Dictionary.com
1670s, from French déshabillé (17c.), noun use of past participle of déshabiller "to undress" (oneself), from des- (see dis-) + habiller "to dress," originally "prepare, arrange" (see habit).
disharmony (n.) Look up disharmony at Dictionary.com
c.1600; see dis- + harmony.
dishcloth (n.) Look up dishcloth at Dictionary.com
also dish-cloth, 1828, from dish (n.) + cloth. It relegated earlier dish-clout (1520s) to dialect.
dishearten (v.) Look up dishearten at Dictionary.com
1590s (first recorded in "Henry V"), from dis- "the opposite of" + hearten. Related: Disheartened; disheartening.
dishevel (v.) Look up dishevel at Dictionary.com
originally an adjective, "bare-headed," late 14c., variant (with muted final -e) of dishevely, from Old French deschevele "bare-headed, with shaven head," past participle adjective from descheveler "to disarrange the hair," from des- "apart" (see dis-) + chevel "hair," from Latin capillus "hair" (see capillary). Of the hair, "dissheveled," mid-15c. OED says use as a verb is chiefly a back-formation from disheveled.
disheveled (adj.) Look up disheveled at Dictionary.com
also dishevelled, early 15c., "without dressed hair," parallel form of dishevel (adj.); see dishevel. General sense of "with disordered dress" is from c.1600.
dishonest (adj.) Look up dishonest at Dictionary.com
late 14c., from Old French deshoneste (13c., Modern French déshonnête) "dishonorable, horrible, indecent," perhaps from a Medieval Latin or Gallo-Roman compound of Latin dis- "not" (see dis-) + honestus "honorable" (see honest). The Latin formation was dehonestus. Related: Dishonestly.
dishonesty (n.) Look up dishonesty at Dictionary.com
late 14c., "disgrace, shame, want of honor," from Old French deshonesté (13c.) "dishonor, impropriety," from des- (see dis-) + Latin honestatem "honorableness" (see honesty). Meaning "want of honesty" is recorded from 1590s.
dishonor (v.) Look up dishonor at Dictionary.com
mid-13c., from Old French deshonorer (12c.), from Late Latin dishonorare (reformed from classical Latin dehonestare), from dis- "opposite of" (see dis-) + honorare (see honor). Related: Dishonored; dishonoring.
dishonor (n.) Look up dishonor at Dictionary.com
c.1300, from Old French deshonor (12c.); see dishonor (v.).
dishonorable (adj.) Look up dishonorable at Dictionary.com
1530s; see dis- + honorable. Related: Dishonorably.
dishonour Look up dishonour at Dictionary.com
chiefly British English spelling of dishonor; also see -or. Related: Dishonoured; dishonouring; dishonourable; dishonourably.
dishpan (n.) Look up dishpan at Dictionary.com
"pan in which dishes are washed," 1872, from dish (n.) + pan (n.). Dishpan hands attested from 1944.
dishwasher (n.) Look up dishwasher at Dictionary.com
also dish-washer, mid-15c. of persons; 1867 of machines; from dish (n.) + washer.
dishwater (n.) Look up dishwater at Dictionary.com
also dish-water, "water where dishes have been washed," late 15c., from dish (n.) + water (n.1). Used figuratively of weak broth, coffee, etc., from 1719.
dishy (adj.) Look up dishy at Dictionary.com
"very attractive," 1961, from dish (n.) in the "attractive or desirable person or thing" sense + -y (2).
disillusion (v.) Look up disillusion at Dictionary.com
"to free or be freed from illusion," 1855, from a noun meaning "act of freeing from illusion" (1814); see dis- + illusion. Related: Disillusioned; disillusioning.
disillusionment (n.) Look up disillusionment at Dictionary.com
1856, from disillusion + -ment.
disincentive (n.) Look up disincentive at Dictionary.com
1946; see dis- + incentive (n.).
disinclination (n.) Look up disinclination at Dictionary.com
1640s; see dis- + inclination.
disincline (v.) Look up disincline at Dictionary.com
1640s, from dis- + incline (v.). Related: Disinclined; disinclining.
disinfect (v.) Look up disinfect at Dictionary.com
1590s, perhaps from French désinfecter (16c.), or formed in English from dis- + infect. Related: Disinfected; disinfecting.
disinfectant (n.) Look up disinfectant at Dictionary.com
1837, from French désinfectant (1816), noun use of present participle of désinfecter (see disinfect). From 1875 as an adjective.
disinformation (n.) Look up disinformation at Dictionary.com
1955, from Russian dezinformatsiya (1949), which is said to be from French; see dis- + information.
disingenuous (adj.) Look up disingenuous at Dictionary.com
"lacking in candor," 1650s, from dis- "opposite of" + ingenuous. Related: Disingenuously; disingenuousness.
disinherit (v.) Look up disinherit at Dictionary.com
mid-15c., from dis- "not" + inherit. Related: Disinherited; disinheriting. Replaced earlier desherit (c.1300), from Old French desheriter.
disinhibition (n.) Look up disinhibition at Dictionary.com
1927; see dis- + inhibition. From the start it was noted as being, often, "inhibition of an inhibition."
disintegrate (v.) Look up disintegrate at Dictionary.com
1796, from dis- "do the opposite of" + integrate (v.). Related: Disintegrated; disintegrating.
disintegration (n.) Look up disintegration at Dictionary.com
1796, noun of action from disintegrate.
disinter (v.) Look up disinter at Dictionary.com
1610s, from French désenterrer (15c.), from dés- (see dis-) + enterrer "to inter" (see inter). Related: Disinterred.
disinterested (adj.) Look up disinterested at Dictionary.com
1610s, "unconcerned," the sense we now would ascribe to uninterested, with the sense of "impartial" going to disinteressed (c.1600). See dis- + interest. Modern sense of disinterested is first attested 1650s. As things now stand, disinterested means "free from personal bias," while uninterested means "caring nothing for the matter in question." Related: Disinterestedly; disinterestedness.
disinvestment (n.) Look up disinvestment at Dictionary.com
1938, first recorded in writings of J.M. Keynes, from dis- + investment. The verb disinvest in this sense is a back-formation attested from 1961. Related: Disinvested; disinvesting.
disinvite (v.) Look up disinvite at Dictionary.com
1570s; see dis- + invite. Related: Disinvited; disinviting.
disjecta membra (n.) Look up disjecta membra at Dictionary.com
"scattered remains" (especially literary), from Horace's Latin phrase disjecti membra poetae "limbs of a dismembered poet."
disjointed (adj.) Look up disjointed at Dictionary.com
1640s, past participle adjective from disjoint (mid-15c.), from Old French desjoindre, from Latin disiungere, from dis- (see dis-) + iungere (see jugular).
disjunction (n.) Look up disjunction at Dictionary.com
c.1400, disjunccioun, from Old French disjunction (13c.) or directly from Latin disjunctionem "separation," noun of action from past participle stem of disjungere (see disjointed).
disjuncture (n.) Look up disjuncture at Dictionary.com
c.1400, surgical, "dislocation," from Latin; see dis- + juncture. Figurative use from 1680s.
disk (n.) Look up disk at Dictionary.com
American English preferred spelling, 1660s, "round flat surface," from Latin discus "quoit, discus, disk," from Greek diskos "disk, quoit, platter," related to dikein "throw," from PIE *dik-skos-, from root *deik- "to show, pronounce solemnly; also in derivatives referring to the directing of words or objects" [Watkins]; see diction.

Sense of "phonograph disk" is 1888; computing sense is from 1947. Disk jockey first recorded 1941; dee-jay is from 1955; DJ is 1961; video version veejay is 1982. Disk-drive is from 1952.
diskette (n.) Look up diskette at Dictionary.com
"floppy disk," 1973, from disk with diminutive suffix -ette.
dislike (v.) Look up dislike at Dictionary.com
1540s (implied in disliking), hybrid which ousted native mislike as the opposite of like (v.). Related: Disliked; disliking. English in 16c. also had the excellent dislove "hate, cease to love," but it did not survive.
dislocate (v.) Look up dislocate at Dictionary.com
c.1600, from earlier adjective or past participle dislocate "out of joint" (c.1400), from Medieval Latin dislocatus, past participle of dislocare "put out of place," from Latin dis- "away" (see dis-) + locare "to place" (see locate). Related: Dislocated; dislocating.
dislocation (n.) Look up dislocation at Dictionary.com
c.1400, originally of bones, from Old French dislocacion (14c.), or directly from Medieval Latin dislocationem (nominative dislocatio), noun of action from past participle stem of dislocare (see dislocate). General sense is from c.1600.
dislodge (v.) Look up dislodge at Dictionary.com
c.1400, from Old French deslogier "to leave or cause to leave a lodging place; expel, drive away," from des- "do the opposite of" (see dis-) + logier (see lodge (v.)). Related: Dislodged; dislodging.