Sense of "an engine or vehicle for pulling wagons or plows" is recorded by 1896, from earlier traction engine (1859). The meaning "powerful truck for pulling a freight trailer" is first found 1926; tractor-trailer as "combined motor-truck and trailer" is from 1914.
"distinctive arrangement of sails, masts, etc. on a ship; the characteristic manner of fitting the masts and rigging to the hull of any vessel," without regard to the hull, 1822, from rig (v.). Extended to costume, clothing outfit, especially if of a fanciful description, by 1843. Extension to a horse-drawn vehicle (1831) led to the sense of "truck, bus, etc." (1851); and apparatus for well-sinking (1875).
early 15c., pronunciacioun, "mode in which a word is pronounced," from Old French prononciacion (13c.) and directly from Latin pronuntiationem (nominative pronuntiatio) "act of speaking, utterance, delivery," also "proclamation, public declaration," noun of action from past-participle stem of pronuntiare "announce" (see pronounce). The -t- was restored in the English word 16c.
c. 1300, deliveraunce, "action of setting free" in physical or spiritual senses, from Old French delivrance (12c., Modern French délivrance), from delivrer "to set free" (see deliver). Formerly also with senses now restricted to delivery: "childbirth; act of giving or transferring to another; utterance."
late 12c., mēl, "an occasion of taking food, a feast, a supply of food taken at one time for relief of hunger," also (c. 1200) "an appointed time for eating;" from Old English mæl, Anglian mēl, "fixed time, occasion; a meal," from Proto-Germanic *mela- (source also of Old Frisian mel "time;" Middle Dutch mael, Dutch maal "time; meal;" Old Norse mal "measure, time, meal;" German Mal "time," Mahl "meal;" Gothic mel "time, hour"), from PIE *me-lo-, from root *me- (2) "to measure."
Original sense of "time" is preserved in English in piecemeal; compare Middle English poundmele "by pounds at a time; generously." Meals-on-wheels for a social service offering home delivery of food to persons unable to purchase or prepare their own is attested by 1952 (from 1947 as a mobile food delivery service without reference to social services). Meal ticket first attested 1865 in literal sense of "ticket of admission to a dining hall;" figurative sense of "source of income or livelihood" is from 1899.
"place where refuse is dumped, pile or heap of refuse matter," 1865, originally of mining operations, from dump (v.). In reference to sites for discarding domestic trash by 1872. Dumping-ground is by 1857. Meaning "any shabby place" is from 1899. Military sense of "collection of ammunition, equipment, etc. deposited in a convenient place for later use" is by 1915. Meaning "act of defecating" is from 1942. Dump-truck is from 1930.
1690s, "curved line, a continuous bending without angles," from curve (v.). With reference to the female figure (usually plural, curves), from 1862; in reference to statistical graphs, by 1854; as a type of baseball pitch that does not move in a straight line, from 1879. An old name for it was slow. "Slows are balls simply tossed to the bat with a line of delivery so curved as to make them almost drop on the home base." [Chadwick's Base Ball Manual, 1874]