Etymology
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cosmic (adj.)

1640s, "worldly, of this world," a sense now obsolete, from Latinized form of Greek kosmikos "worldly, earthly, of the world," from kosmos "world-order, world" (see cosmos). Cosmical "related to the earth" is attested from 1580s. 

Modern sense of "of or pertaining to the universe," especially as conceived as subject to a harmonious system of laws, is from 1846. Meaning "related to or dealing with the cosmos, forming part of the material universe beyond the earth or the solar system" is from 1871. In reference to inconceivably vast space or protracted time, from 1874. Related: Cosmically.

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dust (n.)

"fine, dry particles of earth or other matter so light that they can be raised and carried by the wind," Old English dust, from Proto-Germanic *dunstaz (source also of Old High German tunst "storm, breath," German Dunst "mist, vapor," Danish dyst "milldust," Dutch duist), from PIE *dheu- (1) "dust, smoke, vapor" (source also of Sanskrit dhu- "shake," Latin fumus "smoke").

Meaning "elementary substance of the human body, that to which living matter decays" was in Old English, hence, figuratively, "mortal life." Sense of "a collection of powdered matter in the air" is from 1570s. Dust-cover "protective covering to keep dust off" is by 1852; dust-jacket "detachable paper cover of a book" is from 1927.

To kick up the (or a) dust "cause an uproar" is from 1753, but the figurative use of dust in reference to "confusion, disturbance" is from 1560s, and compare Middle English make powder fly "cause a disturbance or uproar" (mid-15c.). For bite the dust see bite (v.).

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dust (v.)

c. 1200, "to rise in the air as dust;" later "to sprinkle with dust" (1590s) and "to rid of dust" (1560s); from dust (n.). Related: Dusted; dusting. Sense of "to kill" is U.S. slang first recorded 1938 (compare bite the dust under dust (n.)).

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dust-up (n.)

also dustup, "fight, quarrel, disturbance," 1897, from dust + up; perhaps from dust "confusion, disturbance" (1590s), also compare kick up a dust "cause an uproar" (1753). To dust (someone's) coat was ironical for "to beat (someone) soundly" (1680s).

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dust bowl (n.)
also dustbowl, "drought-plagued region of the U.S. Midwest," 1936, from dust (n.) + bowl (n.1).
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dust-storm (n.)

"windstorm which raises clouds of dust into the air in a desert," by 1838, from dust (n.) + storm (n.).

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dustpan (n.)

also dust-pan, "utensil for collecting and removing dust brushed from the floor," by 1785, from dust (n.) + pan (n.).

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stardust (n.)
also star-dust, 1836 in reference to irresolvable nebulas among star-fields in telescopic views; 1868 as "meteoric dust," from star (n.) + dust (n.).
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dustbin (n.)

also dust-bin, "covered receptacle for disposal of dust, ashes, rubbish, etc. from a house," by 1819, from dust (n.) + bin. Dustbin of history is by 1870.

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