dago (n.)youdaoicibaDictYouDict[dago 词源字典]
1823, from Spanish Diego "James." Originally used of Spanish or Portuguese sailors on English or American ships; by 1900 it had broadened to include non-sailors and shifted to mean chiefly "Italian." James the Greater is the patron saint of Spain, and Diego as generic for "a Spaniard" is attested from 1610s.[dago etymology, dago origin, 英语词源]
Dagon (n.)youdaoicibaDictYouDict
god of the Philistines, from Hebrew Dagon, from dag "fish."
daguerreotype (n.)youdaoicibaDictYouDict
1839, from French daguerreotype, coined from name of inventor, Louis Daguerre (1789-1851) + -type (see type (n.)).
dahlia (n.)youdaoicibaDictYouDict
1804, named 1791 by Spanish botanist Antonio José Cavanilles for Anders Dahl (1751-1789), Swedish botanist and pupil of Linnaeus, who discovered it in Mexico in 1788. The likelihood that a true blue variety of the flower never could be cultivated was first proposed by French-Swiss botanist Augustin Pyramus de Candolle, and noted in English by 1835; hence blue dahlia, figurative expression for "something impossible or unattainable" (1866).
daily (adj.)youdaoicibaDictYouDict
Old English dæglic (see day). This form is known from compounds: twadæglic "happening once in two days," þreodæglic "happening once in three days;" the more usual Old English word was dæghwamlic, also dægehwelc. Cognate with German täglich.
daimon (n.)youdaoicibaDictYouDict
transliteration of Greek daimon "lesser god, guiding spirit, tutelary deity," 1852; see demon. Employed to avoid the post-classical associations of that word.
daimyoyoudaoicibaDictYouDict
also daimio, former title of the chief nobles of Japan, 1839, from Japanese, literally "big name," from Chinese dai "great" + mio, myo "name."
daintily (adv.)youdaoicibaDictYouDict
c. 1300, "sumptuously;" late 14c., "elegantly," from dainty (adj.) + -ly (2).
dainty (n.)youdaoicibaDictYouDict
c. 1300, "excellence, elegance; a luxury," from Old French deintie (12c.) "price, value," also "delicacy, pleasure," from Latin dignitatem (nominative dignitas) "greatness, rank, worthiness, worth, beauty," from dignus "worthy" (see dignity).
dainty (adj.)youdaoicibaDictYouDict
c. 1300, deinte, "delightful, pleasing," from dainty (n.). Meaning evolved in Middle English to "choice, excellent" (late 14c.) to "delicately pretty." Related: Daintiness.
daiquiri (n.)youdaoicibaDictYouDict
type of alcoholic drink, 1920 (first recorded in F. Scott Fitzgerald), from Daiquiri, name of a district or village in eastern Cuba.
dairy (n.)youdaoicibaDictYouDict
late 13c., "building for making butter and cheese; dairy farm," formed with Anglo-French -erie affixed to Middle English daie (in daie maid "dairymaid"), from Old English dæge "kneader of bread, housekeeper, female servant" (see dey (n.1)). The purely native word was dey-house.
dais (n.)youdaoicibaDictYouDict
mid-13c., from Anglo-French deis, Old French dais "table, platform," from Latin discus "disk-shaped object," also, by medieval times, "table," from Greek diskos "quoit, disk, dish" (see disk (n.)). Died out in English c. 1600, preserved in Scotland, revived 19c. by antiquarians.
daisy (n.)youdaoicibaDictYouDict
Old English dægesege, from dæges eage "day's eye," because the petals open at dawn and close at dusk. (See day (n.) + eye (n.)). In Medieval Latin it was solis oculus "sun's eye." As a female proper name said to have been originally a pet form of Margaret (q.v.).

Daisy-cutter first attested 1791, originally of horses that trot with low steps; later of cricket (1889) and baseball hits that skim along the ground. Daisy-chain in the "group sex" sense is attested from 1941. Pushing up daisies "dead" is attested from 1918, but variants with the same meaning go back to 1842.
DakotayoudaoicibaDictYouDict
1809, name of a group of native peoples from the Plains states speaking a Siouan language, from Dakota dakhota "friendly" (the name often is translated as "allies"). Recorded by Lewis and Clark (1804) as Dar co tar; in western dialects of the Teton subgroup, Lakota, Lakhota; in Assiniboine dialect, Nakota, Nakhota.
dal (n.)youdaoicibaDictYouDict
1690s, from Hindi dal "split pulse," from Sanskrit dala, from dal "to split."
Dalai LamayoudaoicibaDictYouDict
literally "the Ocean Lama," from Mongolian dalai "ocean" + lama.
dale (n.)youdaoicibaDictYouDict
Old English dæl "dale, valley, gorge," from Proto-Germanic *dalan "valley" (cognates: Old Saxon, Dutch, Gothic dal, Old Norse dalr, Old High German tal, German Tal "valley"), from PIE *dhel- "a hollow" (cognates: Old Church Slavonic dolu "pit," Russian dol "valley"). Preserved by Norse influence in north of England.
daliance (n.)youdaoicibaDictYouDict
mid-14c., "confab, chat," from dally + -ance. Probably formed in Anglo-French, but not attested there. Meaning "amorous play, flirtation" is from late 14c.; that of "idle or frivolous activity" is from 1540s.
DallasyoudaoicibaDictYouDict
city in Texas, U.S., settled 1841, named 1846 for George M. Dallas (1792-1864), U.S. vice president under Polk (1845-49); the family name (13c.) is from the barony of Dallas (Moray) or means "dweller at the house in the dale."