How Did the Phrase "Good Night, Sleep Tight" Phrase Originate?
In Shakespeare's time, mattresses were secured to the bed frames by ropes. When you pulled on the ropes, the mattress tightened, making the bed firmer to sleep on. Hence the phrase...  'Good night, sleep tight" phrase cam into fashion.

How Did Honeymoon Originate?
It was the accepted practice in Babylon, 4,000 years ago, that for a month after the wedding, the bride's father would supply his son-in-law with all the Mead he could drink (Mead is a honey beer) and because their calendar was lunar based, this period was called the honey month, which we know today as the honeymoon. Even now, in Kerala, when military people come home, what is most expected by related elders is bottle.

How Did the "Thumb Rule" Originate?
In the 1400's a law was set forth in England that a man was allowed to beat his wife with a stick not thicker than his thumb. Hence we have "the thumb rule".

How Did the Name Golf Originate?
Many years ago in Scotland, a new game was invented. It was ruled "Gentlemen Only...Ladies Forbidden".. ..and thus the word GOLF entered into the English language. [But if it is so, then when women have also starting playing it its name should be modified?

In golf, where did the term 'Caddie' come from?
When Mary Queen of Scots went to France as a young girl, Louis, King of France, learned that she loved the Scots' game 'golf.' So he had the first course outside of Scotland built for her enjoyment. To make sure she was properly chaperoned (and guarded) while she played, Louis hired cadets from a military school to accompany her. Mary liked this a lot and when returned to Scotland (not a very good idea in the long run), she took the practice with her. In French, the word cadet is pronounced 'ca-day' and the Scots changed it into 'caddie'.

Who Invented the term "Cyber Monday"
The term "Cyber Monday" was invented by Shop.org website, part of the US trade association National Retail Federation. The term made its debut on November 28, 2005 in a Shop.org press release entitled 'Cyber Monday' Quickly Becoming One of the Biggest Online Shopping Days of the Year. According to Scott Silverman, the head of shop.org, the term was coined based on research showing that 78% of online retailers reported a significant increase in sales on the Monday after Thanksgiving in 2004.

What is the Origin of the Word Volcano?
From "Vulcan" - the Roman "God of Fire".
[www.livescience.com, 5/18/2008]

How the word "Hello" started?
When you pick the telephone you say "Hello" as the first word. Do you know how it started and what is it? Surprisingl enough it is the name of a girl. Yes, it is a name of girl. Everybody knows that Graham Bell invented the telephone. It is the name of Bell's girlfriend's name. Her name was Margaret Hello. So when he made the first phone call, he made it to his girlfriend and he called - "Hello".

How the word OK started?
In 1839, only survivor of a slang fad in Boston and New York c.1838-9 for abbreviations of common phrases with deliberate, jocular misspellings (cf. K.G. for "no go," as if spelled "know go"); in this case, "oll korrect." Further popularized by use as an election slogan by the O.K. Club, New York boosters of Democratic president Martin Van Buren's 1840 re-election bid, in allusion to his nickname Old Kinderhook, from his birth in the N.Y. village of Kinderhook. Van Buren lost, the word stuck, in part because it filled a need for a quick way to write an approval on a document, bill, etc. The noun is first attested 1841; the verb 1888. Spelled out as okeh, 1919, by Woodrow Wilson, on assumption that it represented Choctaw okeh "it is so" (a theory which lacks historical documentation); this was ousted quickly by okay after the appearance of that form in 1929. Okey-doke is student slang first attested 1932. Greek immigrants to America who returned home early 20c. having picked up U.S. speech mannerisms were known in Greece as okay-boys, among other things.
(from  www.etymonline.com/index.php?item=OK )

HL Mencken once described "O.K." as "the most successful of Americanisms," an estimation verified by US troops during the Second World War, who reported encountering the phrase all over the world. Of all the scores of theories (and sub-theories) as to the origin of "O.K.," the most widely heard traces "O.K." to the "O.K. Club," a political committee supporting Martin Van Buren's unsuccessful bid for the Presidency in 1840. The "O.K.," it is said, was short for "Old Kinderhook," Van Buren's nickname.

Ironically, while "O.K." didn't save Van Buren's campaign, the campaign gave "O.K." a new lease on life -- until then, it had never been as popular as a competing phrase, "O.W." (for "oll wright"). (By the way, before we start feeling too superior to the cornball 1800s, is "oll wright" really any worse than the "excuuuse me!" or "not!" fads of a few years ago?).
(from  www.word-detective.com/back-q.htm#ok)

OK is without doubt the best-known and widest-traveled Americanism, used and recognized even by people who hardly know another word of English. Running in parallel with its popularity have been many attempts to explain where it came from - amateur etymologists have been obsessed with OK and theories have bred unchecked for the past 150 years.

Others suggestions include: from the Choctaw-Chickasaw okah meaning “it is indeed”; from a mishearing of the Scots och aye! (ch pronounced as k) or perhaps Ulster Scots Ough aye!, “yes, indeed!”; from West African languages like Mandingo (O ke, “certainly”) or Wolof (waw kay, “yes indeed”); from Finnish oikea, “correct, exact”; from French au quais, “at the quay” (supposedly stenciled on Puerto Rican rum specially selected for export, or a place of assignation for French sailors in the Caribbean); or from French Aux Cayes (a port in Haiti famous for its superior rum). Such accidentally coincidental forms across languages are surprisingly common and all of these are certainly false. Many African-Americans would be delighted to have it proved that OK is actually from an African language brought to America by slaves, but the evidence is against them.
More at........     www.worldwideworlds.org/qa/qa-oka1.htm

What is the Origin of Good Bye
Goodbye comes from the expression: 'god be with you'. [God + B + Ye]

How is the Word Salary Originated?
Every time you get a salary, thank the Romans for it. The word salary comes from the word salarium which is derived from the Latin word 'sal' for salt. This was fixed ration of the highly prized salt given each month to Roman soldiers. Later this term extended to the monthly wage paid.

The term computer "bug" was coined in 1947 when engineers traced down a problem in the Mark II computer to what?
(1) An Ant, (2) A Beetle, (3) A Spider, (4) A Moth, (5) A lady Bug,
Engineers found the first computer “bug”: a moth stuck between the relays on the Harvard Mark II on September 9, 1947. These early computers would attract moths that would get stuck between the light-bulbs inside the machines. They taped the insect in their logbook and labeled it "first actual case of bug being found." The words "bug" and "debug" soon became a standard part of the language of computer programmers.