x4 = quadruple
x5 = quintuple
x6 = sextuple
x7 = septuple

You think you never heard of Novuple..
read this....
I had what you might call triple triple arhuriskopically surgery done to my torn -- no, ripped rotator cuff. And seeing as how they bypassed the actual joint, I guess the technical turm for it was novuple bypass surgery.

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Note added at 2003-09-21 14:35:27 (GMT)
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oops! There is no docuple in googles.

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Note added at 2003-09-21 14:37:11 (GMT)
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But there is decuple...The American Heritage® Dictionary of the English Language: Fourth Edition. 2000.

decuple

SYLLABICATION: dec·u·ple
PRONUNCIATION: dky-pl
ADJECTIVE: 1. Consisting of ten parts or members. 2. Ten times as much in size, strength, number, or amount.
NOUN: A tenfold amount or number.
INTRANSITIVE & TRANSITIVE VERB: Inflected forms: dec·u·pled, dec·u·pling, dec·u·ples
To multiply or be multiplied by ten.
ETYMOLOGY: Middle English, from Old French, from Late Latin decuplus : Latin decem, ten; see dek in Appendix I + Latin -plus, -fold; see pel-2 in Appendix I.
OTHER FORMS: de·cuply —ADVERB




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Note added at 2003-09-21 19:59:44 (GMT)
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And now the GRAND DADDY of -uple the N-UPLE. It can be found in scientific papers maths, Physics, Chemistry especially when you are dealing with Waves... development in cluster of wave functions, for example. N-uple ecitations. The Engineers are familiar with it.




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Note added at 2003-09-21 20:01:43 (GMT)
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For the mathematically inclined..
http://king.thch.unipg.it/~franc/ct/node98.html


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Note added at 2003-09-21 20:16:12 (GMT)
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T-Uple is a term used in data structures.

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Note added at 2003-09-21 20:18:48 (GMT)
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And in TELE COMMUNUCATIONS..By combining these two new technologies, new cable owners can double, quadruple or even oct-uple, 16-uple, and 32-uple the carrying capacity of each fibre..

http://www.electricwords.com/crossroads/cross99/990817cross....



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Note added at 2003-09-21 20:21:48 (GMT)
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SO THERE IS NO LIMIT TO THE USE OF UPLES. PLEASE LET ME HAVE THE PRIVILAGE OF COINING A TERM IN ENGLISH. SORRY, I CANNOT BE MODEST ABOUT IT. :)

\"INFINITUPLE\"

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Note added at 2003-09-21 21:14:53 (GMT)
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Actually INFINITUPLE allready exists in the WEBSTERS DICTIONARY 1913 edition. Here is what it says...
Infinituple
In*fin\"i*tu`ple (?), a. [Cf. Quadruple.] Multipied an infinite number of times. [R.]


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Note added at 2003-09-21 21:16:02 (GMT)
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http://machaut.uchicago.edu/cgi-bin/WEBSTER.page.sh?PAGE=759

As for languages, you might say bilingual, trilingual but multilingual will suit better than quadrilingual etc...in French, after 3, we say "polyglotte" (several tongues)

This is a possible synonym, if you are looking for one. It is an adjective, not a verb, and is not completely interchangeable. You can use it for increases, for example, but not for heart-bypass operations.

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Note added at 6 days (2003-09-28 10:05:12 GMT) Post-grading
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Already given by James Caulfield, I see.

2 Double
3 Triple
4 Quadruple "Quad"
5 Quintuple "Quint"
6 Sextuple "Sex"
7 Septuple "Sept"
8 Octuple "Oct"
9 Nonuple "Non"
10 Decuple "Dec"
11 Undecuple "Undec"
12 Duodecuple "Duodec"
13 Tredecuple "Tredec"
14 Quattuordecuple "Quattuordec"
15 Quindecuple "Quindec"
16 Sexdecuple "Sexdec"
17 Septendecuple "Septendec"
18 Octodecuple "Octodec"
19 Novemdecuple "Novemdec"
20 Viguple "Vig"
21 Unviguple "Unvig"
22 Duoviguple "Duovig"
23 Treviguple "Trevig"
24 Quattuorviguple "Quattuorvig"
25 Quinviguple "Quinvig"
26 Sexviguple "Sexvig"
27 Septenviguple "Septenvig"
28 Octoviguple "Octovig"
29 Novemviguple "Novemvig"
30 Triguple "Trig"
31 Untriguple "Untrig"
32 Duotriguple "Duotrig"
33 Tretriguple "Tretrig"
34 Quattuortriguple "Quattuortrig"
35 Quintriguple "Quintrig"
36 Sextriguple "Sextrig"
37 Septentriguple "Septentrig"
38 Octotriguple "Octotrig"
39 Novemtriguple "Novemtrig"
40 Quadraguple "Quadrag"
41 Unquadraguple "Unquadrag"
42 Duoquadraguple "Duoquadrag"
43 Trequadraguple "Trequadrag"
44 Quattuorquadraguple "Quattuorquadrag"
45 Quinquadraguple "Quinquadrag"
46 Sexquadraguple "Sexquadrag"
47 Septenquadraguple "Septenquadrag"
48 Octoquadraguple "Octoquadrag"
49 Novemquadraguple "Novemquadrag"
50 Quinquaguple "Quinquag"
51 Unquinquaguple "Unquinquag"
52 Duoquinquaguple "Duoquinquag"
53 Trequinquaguple "Trequinquag"
54 Quattuorquinquaguple "Quattuorquinquag"
55 Quinquinquaguple "Quinquinquag"
56 Sexquinquaguple "Sexquinquag"
57 Septenquinquaguple "Septenquinquag"
58 Octoquinquaguple "Octoquinquag"
59 Novemquinquaguple "Novemquinquag"
60 Sexaguple "Sexag"
61 Unsexaguple "Unsexag"
62 Duosexaguple "Duosexag"
63 Tresexaguple "Tresexag"
64 Quattuorsexaguple "Quattuorsexag"
65 Quinsexaguple "Quinsexag"
66 Sexsexaguple "Sexsexag"
67 Septensexaguple "Septensexag"
68 Octosexaguple "Octosexag"
69 Novemsexaguple "Novemsexag"
70 Septuaguple "Septuag"
71 Unseptuaguple "Unseptuag"
72 Duoseptuaguple "Duoseptuag"
73 Treseptuaguple "Treseptuag"
74 Quattuorseptuaguple "Quattuorseptuag"
75 Quinseptuaguple "Quinseptuag"
76 Sexseptuaguple "Sexseptuag"
77 Septenseptuaguple "Septenseptuag"
78 Octoseptuaguple "Octoseptuag"
79 Novemseptuaguple "Novemseptuag"
80 Octoguple "Octog"
81 Unoctoguple "Unoctog"
82 Duooctoguple "Duooctog"
83 Treoctoguple "Treoctog"
84 Quattuoroctoguple "Quattuoroctog"
85 Quinoctoguple "Quinoctog"
86 Sexoctoguple "Sexoctog"
87 Septoctoguple "Septoctog"
88 Octooctoguple "Octooctog"
89 Novemoctoguple "Novemoctog"
90 Nonaguple "Nonag"
91 Unnonaguple "Unnonag"
92 Duononaguple "Duononag"
93 Trenonaguple "Trenonag"
94 Quattuornonaguple "Quattuornonag"
95 Quinnonaguple "Quinnonag"
96 Sexnonaguple "Sexnonag"
97 Septennonaguple "Septennonag"
98 Octononaguple "Octononag"
99 Novemnonaguple "Novemnonag"
100 Centuple "Cent"
1000 Millidruple "Mil"
1M Megadruple "Mega"
1B Gigadruple "Gig"
1T Teradruple "Tera"