dismal (adj.)youdaoicibaDictYouDict[dismal 词源字典]
c. 1400, from Anglo-French dismal (mid-13c.), from Old French (li) dis mals "(the) bad days," from Medieval Latin dies mali "evil or unlucky days" (also called dies Ægyptiaci), from Latin dies "days" (see diurnal) + mali, plural of malus "bad" (see mal-).

Through the Middle Ages, calendars marked two days of each month as unlucky, supposedly based on the ancient calculations of Egyptian astrologers (Jan. 1, 25; Feb. 4, 26; March 1, 28; April 10, 20; May 3, 25; June 10, 16; July 13, 22; Aug. 1, 30; Sept. 3, 21; Oct. 3, 22; Nov. 5, 28; Dec. 7, 22). Modern sense of "gloomy, dreary" first recorded in English 1590s, in reference to sounds. Related: Dismally.[dismal etymology, dismal origin, 英语词源]
dismantle (v.)youdaoicibaDictYouDict
1570s, from Middle French desmanteler "to tear down the walls of a fortress," literally "strip of a cloak," from des- "off, away" (see dis-) + manteler "to cloak" (see mantle). Related: Dismantled; dismantling.
dismast (v.)youdaoicibaDictYouDict
1747, from dis- + mast (n.1). Related: Dismasted; dismasting.
dismay (v.)youdaoicibaDictYouDict
late 13c., dismaien, from Old French *desmaier (attested only in past participle dismaye), from Latin de- intensive prefix + Old French esmaier "to trouble, disturb," from Vulgar Latin *exmagare "divest of power or ability" (source of Italian smagare "to weaken, dismay, discourage"), from ex- (see ex-) + Germanic stem *mag- "power, ability" (cognates: Old High German magen "to be powerful or able;" see may (v.)). Spanish desmayer "to be dispirited" is a loan word from Old French. Related: Dismayed; dismaying.
dismay (n.)youdaoicibaDictYouDict
c. 1300, from dismay (v.).
dismember (v.)youdaoicibaDictYouDict
c. 1300, from Old French desmembrer (11c.), from Medieval Latin dismembrare "tear limb from limb; castrate," from Latin de- "take away" + membrum "limb" (see member). Related: Dismembered; dismembering.
dismemberment (n.)youdaoicibaDictYouDict
1751, from dismember + -ment. Earlier formation was dismembration (1590s).
dismiss (v.)youdaoicibaDictYouDict
early 15c., from Latin dimissus, past participle of dimittere "send away, send different ways; break up, discharge; renounce, abandon," from dis- "apart, away" (see dis-) + mittere "send, let go" (see mission). Prefix altered by analogy with many dis- verbs. Dismit, in the same sense, is attested from late 14c. Related: Dismissed; dismissing.
dismissal (n.)youdaoicibaDictYouDict
1806, formed on model of refusal, etc., from dismiss + -al (2); replacing earlier dismission (1540s).
dismissive (adj.)youdaoicibaDictYouDict
1640s, "characterized by or appropriate to dismissal;" from dismiss + -ive. Meaning "contemptuous, rejecting" is recorded by 1922. Related: Dismissively.
dismount (v.)youdaoicibaDictYouDict
1540s, from dis- + mount (v.). Related: Dismounted; dismounting.
DisneyyoudaoicibaDictYouDict
surname attested from mid-12c. (William de Ysini), from Isigny in the Calvados region of Normandy. Disneyesque, in reference to Walt Disney's cartooning style, is attested from 1939 (in W.H. Auden).
Disneyland (n.)youdaoicibaDictYouDict
in figurative sense of "land of make-believe" first recorded 1956, from U.S. entertainment park (opened in 1955) created by cartoonist Walter E. Disney (1901-1966).
disobedience (n.)youdaoicibaDictYouDict
c. 1400, from Old French desobedience, from Vulgar Latin *disobedientia (replacing Latin inobedientia) from Latin dis- (see dis-) + obedientia (see obedience). The English word replaced earlier desobeissance in this sense, and inobedience (c. 1200).
disobedient (adj.)youdaoicibaDictYouDict
early 15c., dysobedyent, from Old French desobedient, from Vulgar Latin *disobedientem (replacing Latin inobedientem) from Latin dis- (see dis-) + obedientem (see obedient). Related: Disobediently. Earlier in the same sense was disobeissant (late 14c.), from Old French desobeissant, and inobedient (early 14c.).
disobey (v.)youdaoicibaDictYouDict
late 14c., from Old French desobeir (13c.) "disobey; refuse service or homage," from Vulgar Latin *disoboedire, reformed with dis- from Late Latin inobedire, a back-formation from inobediens "not obeying," from Latin in- "not" + present participle of obedire (see obey). Related: Disobeyed; disobeying.
disoblige (v.)youdaoicibaDictYouDict
c. 1600, "to free from obligation;" 1630s, "to refuse to oblige," from French désobliger (c. 1300), from des- (see dis-) + Latin obligare (see oblige). Related: Disobliged; disobliging.
disorder (v.)youdaoicibaDictYouDict
late 15c., from dis- "not" (see dis-) + the verb order (v.). Replaced earlier disordeine (mid-14c.), from Old French desordainer, from Medieval Latin disordinare "throw into disorder," from Latin ordinare "to order, regulate" (see ordain). Related: Disordered; disordering.
disorder (n.)youdaoicibaDictYouDict
1520s, from disorder (v.).
disorderly (adj.)youdaoicibaDictYouDict
1580s, "opposed to moral order," also "opposed to legal authority;" see dis- + orderly (adj.). The meaning "untidy" is attested from 1630s; the older senses are those in disorderly house, disorderly conduct, etc.