英语词源字典 - 在线词源网站

blurb (n.): used by U.S. scholar Brander Matthews (1852-1929) in 1906 in "American Character;" popularized 1907 by U.S. humorist Frank Gelett Burgess (1866-1951). Originally mocking excessive praise printed on book jackets.
Gelett Burgess, whose recent little book, "Are You a Bromide?" has been referred to above, then entertained the guests with some characteristic flashes of Burgessian humor. Referring to the word "blurb" on the wrapper of his book he said: "To 'blurb' is to make a sound like a publisher. The blurb was invented by Frank A. Munsey when he wrote on the front of his magazine in red ink 'I consider this number of Munsey's the hottest pie that ever came out of my bakery.' ... A blurb is a check drawn on Fame, and it is seldom honored.["] ["Publishers' Weekly," May 18, 1907]
conscientious objector (n.): 1896, in reference to those with religious scruples about mandatory vaccination. Military sense predominated from World War I.
After a chequered career full of startling episodes and reversals, the Vaccination Bill becomes virtually the Vaccination Act. In Parliament the hottest of the contest centred round the conscientious objector. [The Lancet, Aug. 13, 1898]
dog days (n.): 1530s, from Latin dies caniculares, from Greek; so called because they occur around the time of the heliacal rising of Sirius, the Dog Star (kyon seirios). Noted as the hottest and most unwholesome time of the year; usually July 3 to Aug. 11, but variously calculated, depending on latitude and on whether the greater Dog-star (Sirius) or the lesser one (Procyon) is reckoned.

The heliacal rising of Sirius has shifted down the calendar with the precession of the equinoxes; in ancient Egypt c. 3000 B.C.E. it coincided with the summer solstice, which also was the new year and the beginning of the inundation of the Nile. The "dog" association apparently began here (the star's hieroglyph was a dog), but the reasons for it are obscure.
knothead (n.): "stupid person," by 1899, American English, from knot (n.) + head (n.). Joe Knothead is the name of a character in an 1857 blackface satire publication. And a local history from Massachusetts published in 1879 describes an old-time character known as knot-head because "[d]uring the hottest days of summer ... he worked bare-headed in the sun ...."

Knothead also was used as a term in cattle and sheep raising, defined in 1922 as "a type of poorly bred, stunted northern cattle, about the size of yearlings, but with heavy horns indicating that they are older." It turns up, however, in an 1849 petition to the Ohio Legislature, recommending a certain person for a court position, in part because he is a knot-head, which the report of the petition notes is a term of praise for a judge because they are asked to untangle knotty legal questions, but which phrase, it adds, "is believed not to be in use among gentlemen in the north part of the State." [Appendix to the Journal of the Ohio House of Representatives, Session of 1848-9]
vindaloo: "A very hot and spicy curry", Probably from Portuguese vin d'alho 'wine and garlic (sauce)', from vinho 'wine' + alho 'garlic'. More The vindaloo is one of the hottest curries in the British Indian restaurant's repertoire, but in origin the word was not Indian and did not imply spiciness. It probably derives from Portuguese vin d'alho ‘wine and garlic sauce’. A recipe for vindaloo is recorded in English in 1888, which describes it as a Portuguese curry, but it did not become familiar until Indian restaurants spread widely in the 1960s.