late 13c., "make deliberate physical contact with," from Old French tochier "to touch, hit, knock; mention, deal with" (11c., Modern French toucher), from Vulgar Latin *toccare "to knock, strike" as a bell (source also of Spanish tocar, Italian toccare), perhaps of imitative origin. Related: Touched; touching.

From c. 1300 in the transitive sense "bring into physical contact," also "pertain to." Other senses attested from 14c. are "perceive by physical contact, examine by sense of touch," also "be or come into physical contact with; come to rest on; border on, be contiguous with;" also "use the sense of touch," and "mention, describe." From early 14c. as "affect or move mentally or emotionally," with notion of to "touch" the heart or mind. Also from early 14c. as "have sexual contact with." Meaning "to get or borrow money" first recorded 1760.

Touch-and-go (adj.) is recorded from 1812, apparently from the name of a tag-like game, first recorded 1650s (however, despite the coincidence, this in no way suggests an acronym origin for tag). Touch football is first attested 1933. Touch-me-not (1590s) translates Latin noli-me-tangere.

"the quince tree or its fruit," mid-14c., plural (construed as singular) of quoyn, coin (early 14c.), from Old French cooin (Modern French coing), from Vulgar Latin *codoneum, from Latin cotoneum mālum "quince fruit," probably a variant of cydonium malum (or a separate borrowing from the same source) from Greek kydōnion malon, which is traditionally "apple of Kydōnia" (modern Khania), a famous ancient seaport city on the north coast of Crete.

But Beekes says it is from "an older Anatolian word" and that connection with Kydōnia is Greek folk etymology. He also notes there was a Kytōnion on the Lydian border.

The plant is native to Persia, Anatolia, and Greece; the Greeks supposedly imported grafts for their native plants from a superior strain in Crete, hence the name. Kodu- also was the Lydian name for the fruit. Italian cotogno, German Quitte, etc. all are ultimately from the Greek word.

The quince has suffered a sad fall from favour in Britain. In medieval and Renaissance times it was in high popularity .... Perhaps it is the fruit's frequent intractable hardness, needing long cooking to overcome, which has led impatient British cooks to forsake it, despite its unrivalled perfume. [John Ayto, "Diner's Dictionary"]

late 14c., "to skirt, to go around the sides, to go along the border" of something (as a ship does the coastline), from Anglo-French costien, from the French source of coast (n.).

The meaning "sled downhill," first attested 1834 in American English, is a separate borrowing or a new development from the noun. In bicycle-riding, "descend a hill with the feet off the pedals," from 1879. Of motor vehicles, "to move without thrust from the engine," from 1896; figurative use, of persons, "not to exert oneself," by 1934. Related: Coasted; coasting.

"Coasting" consists in throwing the legs up over the handles and allowing the bicycle to rush of its own impetus down hill. It can only be done with safety where the road is perfectly smooth, hard, and free from obstructions; but, under such conditions, bicycle coasting affords one of the most glorious and exhilarating of sensations, and, next to ballooning, its motion most nearly resembles the flight of a bird. [Harper's Weekly, Dec. 20, 1879]

The reckless coasting down the long hills on the route was scarcely more defensible. Speeds of 25 to 30 miles an hour were reached in some instances. The common road is not the proper place for such exhibitions, especially in populous centres. The risk is altogether too great, both for occupants of the vehicle and for other frequenters of the highway. [account of an automobile race on the streets of New York in The Horseless Age, June 1896] 

Old English elles "in another manner, other, otherwise, besides, different," from Proto-Germanic *aljaz (source also of Gothic aljis "other," Old High German eli-lenti, Old English el-lende, both meaning "in a foreign land;" see also Alsace), an adverbial genitive of the neuter of PIE root *al- "beyond" (source also of Greek allos "other," Latin alius). As a quasi-adjective, synonymous with other, from 1660s; the nuances of usage are often arbitrary.

Productive of a number of handy compounds that somehow never got traction or have been suffered to fall from use: elsehow (1660s) "somehow or other;" elsewards (adv.), 1882, "somewhere else;" Old English elsewhat (pron.) "something else, anything else;" elsewhen (adv.), early 15c., "at another time; elsewhence (c. 1600); elsewho (1540s). Among the survivors are elsewhere, elsewise. Menacing or else, with omitted but implied threat, is implied by 1814:

In Tynedale, Buccleuch seized upon no less than thirty-six English freebooters, and put them to death without mercy. The wrath of Elizabeth waxed uncontrollable. "I marvel," are her own royal expressions, "how the king thinks me so base-minded as to sit down with such dishonourable treatment. Let him know we will be satisfied, or else"—Some of James's ancestors would have bid her

"Choke in thy threat. We can say or as loud."

[Sir Walter Scott, "The Border Antiquities of England and Scotland," 1814]

"trace, impression," Old English mearc (West Saxon), merc (Mercian) "boundary, limit; sign, landmark," from Proto-Germanic *markō (source also of Old Norse merki "boundary, sign," mörk "forest," which often marked a frontier; Old Frisian merke, Gothic marka "boundary, frontier," Dutch merk "mark, brand," German Mark "boundary, boundary land"), from PIE root *merg- "boundary, border." Influenced by, and partly from, Scandinavian cognates. The Germanic word was borrowed widely and early in Romanic (compare marque; march (n.2), marquis).

The primary sense "boundary" had evolved by Old English through "pillar, post, etc. as a sign of a boundary," through "a sign in general," then to "impression or trace forming a sign." Meaning "any visible trace or impression" is recorded by c. 1200. Meaning "a cross or other character made by an illiterate person as a signature" is from late Old English. Sense of "line drawn to indicate the starting point of a race" (as in on your marks..., which is by 1890) is attested by 1887.

The Middle English sense of "target" (c. 1200) is the notion in marksman and slang sense "victim of a swindle" (1883). The notion of "sign, token" is behind the meaning "a characteristic property, a distinctive feature" (1520s), also that of "numerical award given by a teacher" (by 1829). To make (one's) mark "attain distinction" is by 1847.

In medieval England and in Germany, "a tract of land held in common by a community," hence Mark of Brandenburg, etc.

"Native North American shaman," by 1801, from adoption of the word medicine in native speech with a sense of "magical influence; something supposed to possess curative, supernatural, or mysterious power." The U.S.-Canadian boundary they called the Medicine Line (attested by 1880), because it conferred a kind of magic protection: punishment for crimes committed on one side of it could be avoided by crossing over to the other. Compare Middle English use of medicine in secondary senses of "moral, psychological, or social remedy; safeguard, defense."

Unless some understanding is arrived at between the American and Canadian Governments that offenders may be promptly and vigorously dealt with, I very much fear that killing and stealing will increase to such an extent that the country along the border will be scarcely habitable. When the Indians are made to understand that the mere fact of "hopping" across the line does not exempt them from punishment, there will be a much greater guarantee of their good behaviour. Now they call the boundary the "Medicine line," because no matter what they have done upon one side they feel perfectly secure after having arrived upon the other. [Report of Superintendent L.N.F. Crozier, Dec. 1880, in "North-West Mounted Police Force Commissioner's Report," 1880]

Hence also medicine bag "pouch containing some article supposed to possess curative or magical powers, worn on the person by native North American people" (1802). 

Proto-Indo-European root meaning "be sharp, rise (out) to a point, pierce."

It forms all or part of: acacia; acanthus; accipiter; acer; acerbic; acerbity; acervate; acervulus; acescent; acetic; acid; acicular; acme; acne; acrid; acridity; acrimony; acro-; acrobat; acromegaly; acronym; acrophobia; acropolis; acrostic; acrylic; acuity; aculeate; acumen; acupressure; acupuncture; acute; aglet; ague; Akron; anoxic; awn; coelacanth; dioxin; deoxy-; eager; ear (n.2) "grain part of corn;" edge (n.); egg (v.) "to goad on, incite;" eglantine; epoxy; ester; exacerbation; hammer; hypoxia; mediocre; oxalic; oxide; oxy-; oxygen; oxymoron; paragon; pyracanth; paroxysm; selvage; vinegar.

It is the hypothetical source of/evidence for its existence is provided by: Greek akros "at the end, at the top, outermost; consummate, excellent," akis "sharp point," akē "point of an iron tool," akantha "thorn," akmē "summit, edge," oxys "sharp, bitter;" Sanskrit acri- "corner, edge," acani- "point of an arrow," asrih "edge;" Oscan akrid (ablative singular) "sharply;" Latin acer (fem. acris) "sharp to the senses, pungent, bitter, eager, fierce," acutus "sharp, pointed," acuere "to sharpen," acerbus "harsh, bitter," acere "be sharp, be bitter," acus "a needle, pin," ocris "jagged mountain;" Lithuanian ašmuo "sharpness," akstis "sharp stick;" Old Lithuanian aštras, Lithuanian aštrus "sharp;" Old Church Slavonic ostru, Russian óstryj "sharp;" Old Irish er "high;" Welsh ochr "edge, corner, border;" Old Norse eggja "goad;" Old English ecg "sword;" German Eck "corner."

early 15c., pictur, pictoure, pittour, pectur, "the process or art of drawing or painting," a sense now obsolete; also "a visual or graphic representation of a person, scene, object, etc.," from Latin pictura "painting," from pictus, past participle of pingere "to make pictures, to paint, to embroider," (see paint (v.)).

Picture window is from 1938. Picture post-card is recorded from 1899. Picture-book, "book illustrated with pictures or consisting mostly of pictures," especially one for children, is by 1847. Picture-frame "more or less ornamental border put around a picture to protect it" is from 1660s.

The phrase every picture tells a story is attested from 1900, in advertisements for an illustrated life of Christ. To be in (or out of) the picture in the figurative sense dates to 1900.

The expression a picture is worth a thousand words, attested from 1918, probably originated in the publication trade (the notion that a picture was worth 1,000 words is in printers' publications by 1911). The phrase was used in the form worth a million words by American newspaper editor Arthur Brisbane (1864-1936) in an editorial much-read c. 1916 titled "What is a Good Newspaper" in the "New York Evening Journal." In part it read: "After news and humor come good pictures. In this day of hurry we learn through the eye, and one picture may be worth a million words."

The phrase seems to have emerged into general use via the medium of advertising (which scaled down the number and also gave the expression its spurious origin story as "a Japanese proverb" or some such thing, by 1919). Earlier various acts or deeds (and in one case "the arrow") were said to be worth a thousand words.

c. 1200, poisoun, "a deadly potion or substance," also figuratively, "spiritually corrupting ideas; evil intentions," from Old French poison, puison (12c., Modern French poison) "a drink," especially a medical drink, later "a (magic) potion, poisonous drink" (14c.), from Latin potionem (nominative potio) "a drinking, a drink," also "poisonous drink" (Cicero), from potare "to drink" (from PIE root *po(i)- "to drink").

A doublet of potion. For similar form evolution from Latin to French, compare raison from rationem, trahison from traditionem. The more usual Indo-European word for this is represented in English by virus. The Old English word was ator (see attercop) or lybb (cognate with Old Norse lyf "medicinal herbs;" see leaf (n.)).

For sense evolution, compare Old French enerber, enherber "to kill with poisonous plants." In many Germanic languages "poison" is named by a word equivalent to English gift (such as Old High German gift, German Gift, Danish and Swedish gift; Dutch gift, vergift). This shift might have been partly euphemistic, partly by influence of Greek dosis "a portion prescribed," literally "a giving," used by Galen and other Greek physicians to mean an amount of medicine (see dose (n.)).

Of persons detested or regarded as exerting baleful influence, by 1910. The slang meaning "alcoholic drink" is by 1805 in American English (potus as a past-participle adjective in Latin meant "drunken").

As an adjective from 1520s; with plant names from 18c. Poison ivy is recorded by 1784 for a shrub-vine of North America causing an itching rash on contact; poison oak for poison ivy or related species is by 1743. Poison sumac (1817), causing an even more severe rash, is a swamp-border tree noted for the brilliant red of its leaves in fall. Poison gas is recorded from 1915. Poison-pen (letter) was popularized 1913 by a notorious criminal case in Pennsylvania, U.S.; the phrase dates to 1898.

"man who draws attention by unusual finery of dress and fastidiousness manners, a fop," c. 1780, of uncertain origin; attested earliest in a Scottish border ballad:

I've heard my granny crack

O' sixty twa years back

When there were sic a stock of Dandies O

etc. In that region, Dandy is diminutive of Andrew (as it was in Middle English generally). OED notes that the word was in vogue in London c. 1813-1819. His female counterpart was a dandizette (1821) with French-type ending.

Meaning "anything superlative or fine" is from 1786. As an adjective, "characteristic of a dandy, affectedly neat and trim," by 1813; earlier in the sense of "fine, splendid, first-rate" (1792) and in this sense it was very popular c. 1880-1900.

The popular guess, since at least 1827, is that it is from French Dandin, a mock surname for a foolish person used in 16c. by Rabelais (Perrin Dandin), also by Racine, La Fontaine, and Molière, from dandiner "to walk awkwardly, waddle." Farmer rejects this and derives it from dandyprat, an Elizabethan word for "a dwarf; a page; a young or insignificant person," originally (early 16c.) the name of a small silver coin. Both words are of unknown origin, and OED finds the connection of both to dandy to be "without any apparent ground." English dandy was itself borrowed into French c. 1830.

Jack-a-Dandy, or Jack O'Dandy figures in writings from the early 17c. He is listed among other famous Jacks in "Iack a Lent" (1620) and is sometimes defined as an impertinent little man, but other uses are unclear as to sense and in at least one instance from 1620s he is a bogeyman character.

DANDY was first applied half in admiration half in derision to a fop about the year 1816. John Bee (Slang Dict., 1823) says that Lord Petersham was the chief of these successors to the departed Macaronis, and gives, as their peculiarities, 'French gait, lispings, wrinkled foreheads, killing king's English, wearing immense plaited pantaloons, coat cut away, small waistcoat, cravat and chitterlings immense, hat small, hair frizzled and protruding.' [Farmer and Henley, "Slang and its Analogues," 1891]