brand-new (adj.)youdaoicibaDictYouDict[brand-new 词源字典]
1570s, from brand (n.) + new. Originally it must have meant "fresh from the fire" (Shakespeare has fire-new).[brand-new etymology, brand-new origin, 英语词源]
tacky (adj.2)youdaoicibaDictYouDict
"in poor taste," 1888, from earlier sense of "shabby, seedy" (1862), adjectival use of tackey (n.) "ill-fed or neglected horse" (1800), later extended to persons in like condition, "hillbilly, cracker" (1888), of uncertain origin. Related: Tackiness.
The word "tacky" is a Southern colloquialism. It was coined by a wealthier or more refined and educated class for general application to those who were not sheltered by the branches of a family tree, who were "tainted." Those who were wealthy and yet had no great-grandfathers were "tackies." The word was used both in contempt and in derision. It is now nearly obsolete in both senses. There are no aristocrats in the South now, and therefore no "tackies." No man who has the instincts of a gentleman is spoken of as a "tacky," whether he can remember the name of his grandfather's uncle or not. But it has its uses. It is employed in describing persons of low ideas and vulgar manners, whether rich or poor. It may mean an absence of style. In dress, anything that is tawdry is "tacky." A ribbon on the shopkeeper's counter, a curtain in the bolt, a shawl or bonnet, a bolt of cloth fresh from the loom may be "tacky," because it is cheap and yet pretentious. In Louisiana the inferior grade of Creole ponies are known as "tackies." [Horace Ingraham, Charleston, S.C., in "American Notes and Queries," Feb. 15, 1890]
unconditional (adj.)youdaoicibaDictYouDict
1660s, from un- (1) "not" + conditional (adj.). Related: Unconditionally. Unconditional surrender in the military sense is attested from 1730; in U.S., often associated with Civil War Gen. Ulysses S. Grant and the taking of Fort Donelson.
The ringing phrase of Grant's latest despatch circulated through the North like some coinage fresh from the mint, and "Unconditional Surrender," which suited the initials of his modest signature, became like a baptismal name. [James Schouler, "History of the United States of America," Dodd, Mead & Co., 1899].