style of cooking emphasizing freshness and attractive presentation, 1975, French, literally "new cooking."

1911, from Waldorf-Astoria Hotel in New York, where it first was served.

Jewish new year, 1846, from Hebrew rosh hashshanah, literally "head of the year," from rosh "head of" + hash-shanah "the year."

1773 (as St. A Claus, in "New York Gazette"), American English, in reference to the customs of the old Dutch colony of New York, from dialectal Dutch Sante Klaas, from Middle Dutch Sinter Niklaas "Saint Nicholas," bishop of Asia Minor who became a patron saint for children. Now a worldwide phenomenon (Japanese santakurosu). Father Christmas is attested from 1650s.

1712, "belonging to a prehistoric age," see old + world. Meaning "of or pertaining to Eurasia and Africa," as opposed to the Americas, is by 1877. The noun phrase Old World in this sense is by 1590s. The division of the earth into Old World and New World among Europeans dates to 1503 and Italian explorer Amerigo Vespucci's use of Latin Mundus Novus for the lands of the western hemisphere found by Columbus and others, indicating they were not part of Asia.

The Known World is usually divided into four Parts, Europe, Asia, Africk and America. But it is a most unequal Division, and I think it more rational to divide it thus. Viz. the Known World, first into two Parts, the Old and the New World; then the Old World into three, Europe, Asia, and Africa; and the New into two, the Northern and Southern America. [Guy Miege, "A New Cosmography, or Survey of the Whole World," London, 1682]

"New York City," 1909 (but popularized by 1970s tourism promotion campaign), apparently from jazz musicians' use of apple for any city, especially a Northern one.

by 1885, from time (n.) + zone (n.). As in Britain and France, the movement to regulate time nationally came from the railroads.

Previous to 1883 the methods of measuring time in the United States were so varied and so numerous as to be ludicrous. There were 50 different standards used in the United States, and on one road between New York and Boston, whose actual difference is 12 minutes, there were three distinct standards of time. Even small towns had two different standards one known as "town" or local time and the other "railroad" time.

... At noon on November 18, 1883, there was a general resetting of watches and clocks all over the United States and Canada, and the four great time zones, one hour apart, into which the country was divided came into being. So smoothly did the plan work that the general readjustment was accomplished without great difficulty and it has worked satisfactorily ever since. [Railroad Trainman, September 1909]

emporium for stoner gear, by 1969 (noted in 1966 as the name of a specific shop in New York City selling psychedelic stuff), from head (n.) in the drug sense.

Jewish fraternal organization founded in New York City in 1843, Hebrew, literally "Sons of the Covenant," from bene, construct state of banim, plural of ben "son," + brith "covenant."

1946, originally with reference to atomic blasts. In reference to the Sept. 11, 2001, terrorist attack on New York, it was in use by Sept. 13.