driftin' by
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cowboyneal:"TIP" does not mean "To Insure Promptness." Actually, if you wrote in English, the phrase would be "To Ensure Promptness" so, TEP is not TIP. 'Tip' is an old word, and it has nothing to do with either acronyms or the act of attempting to influence quality of service. Although the word has many meanings, both as a verb and as a noun, the use of the term as it applies to monetary rewards to servants dates to the 1700s. It first appeared in this context as a verb ("Then I, Sir, tips me the Verger with half a Crown" from the 1706 George Farquhar play The Beaux Stratagem) and was first recorded as a noun in 1755. However, the use of 'tip' to describe the act of giving something to another (where that list of possible 'somethings' could include small sums of money, intelligence on horse races or the latest silly joke) goes back to 1610. 'Tip' slipped into the language as underworld slang, with the verb 'to tip' (meaning 'to give to or share with') being used by shady characters as part of the then-current argot of petty criminals. Nowadays this use of 'tip' has become entirely respectable, but it is amusing that the usage began its linguistic life as tough guy jargon. One wonders if future generations will similarly discover that some of their everyday terms sprang from scenes in The Godfather or were first voiced in episodes of The Sopranos.
I stand corrected. Although, I'm not sure what exactly you meant with the "Actually, if you wrote in English" comment? A subtle way of saying "Listen here you dumb azz"?
I apologize for for passing on misinformation. It was one of those "mama says" bits of information. Totally bewildered by all the scholarly information cowboyneal was passing along regarding the origins of the word, I did a quick search to verify what he was saying in true. Would you believe what I found? The exact same information word for word cowboyneal posted based upon someone else's research. Cowboyneal, you should really cite your references!
http://www.snopes.com/language/acronyms/tip.htm