What’s the history of the word please?

Question

Any information about the roots of the word and how and who created the word would be helpful

thanks =]

Answer 1

please (v.)  

c.1325, "to be agreeable," from O.Fr. plaisir (Fr. plaire) "to please," from L. placere "to be acceptable, be liked, be approved," related to placare "to soothe, quiet," from PIE base *p(e)lag- "to smooth, make even" (cf. Gk. plax, gen. plakos "level surface," plakoeis "flat;" Lett. plakt "to become flat;" O.N. flaga "layer of earth;" Norw. flag "open sea;" O.E. floh "piece of stone, fragment;" O.H.G. fluoh "cliff"). Intransitive sense (e.g. do as you please) first recorded 1500; imperative use (e.g. please do this), first recorded 1622, was probably a shortening of if it please (you) (1388). Verbs for "please" supply the stereotype polite word ("Please come in," short for may it please you to ...) in many languages (Fr., It.), "But more widespread is the use of the first singular of a verb for 'ask, request' " [Buck, who cites Ger. bitte, Pol. prasze, etc.] Sp. favor is short for hace el favor "do the favor." Dan. has in this sense vær saa god, lit. "be so good."  

Answer 2

I presume you mean the adverbial form, and not the noun or verb.  Here's the Oxford English Dictionary etymology:

adv.    Used in polite request or agreement, or to add a polite emphasis or urgency: kindly, if you please.

1771 P. DAVIES Let. 26 Sept. in F. Mason John Norton & Sons (1968) 192 Please send the inclosed to the Port office. 1787 R. BURNS Let. 17 Apr. in Pearson's Catal. (1888) May 8 In making up the accounts of my copies, please mind that I am paid for the following number of copies, which money I retain in my own hands. 1818 R. B. PEAKE Amateurs & Actors II. i. 44 O! please, Sir, there's a lot of folks below axing forare you a Manager, Sir? 1833 C. DANCE Beulah Spa I. iii. 2 Steady now, please, sir; I'm just coming to your throat. 1836 DICKENS Sketches by Boz 1st Ser. II. 27 ‘Please sir, missis has made tea,’ said a middle-aged female servant, bobbing into the room. 1843 DICKENS Martin Chuzzlewit (1844) xxvii. 333 ‘Not the truth?’ cried Tigg... ‘Don't use that Sunday School expression, please!’ 1891 R. KIPLING Light that Failed xiii. 264 ‘Then I'll tell the boys..’ ‘Please not, old man.’ 1928 H. WILLIAMSON Pathway xvii. 376, ‘I..thought I would look in, Aunt Connie.’ ‘Please don't call me Aunt Connie.’ 1948 Times 24 Mar. 6/1 (advt.) Cheques, please, to ‘Operation Oxfam’, Barclays Old Bank, 92., High St., Oxford. 1970 A. LURIE Real People vi. 101 She warned him..to please wash out his sink and tub with the tub cloth and the can of Bab-O after each use. 1998 R. RAY Certain Age 123 If you must wash, please don't use more than two wipes. 2002 I. KNIGHT Don't you want Me? iii. 36 ‘Shall I take you with me next time?’..‘Yes, please.’