数字薀蓄 by AF氏
(1)「ノネット (NONET)って?」を拝読しながら、クラシックを聴きかじる程度のAFが、インターネットで検索して十五重奏とはどのように言うのか見つけた次第です。
  (2)これを知って、何かに「役に立ちます」かねという情報ではあります。
  
  ただし、ラテン系の「数の呼称」がどのようになっているのかということの理解には「役立つ」かも知れません。
  また、翻って日本語の「数の呼称」との比較をすることによって、日本語の理解の向上に「役立つ」かも知れません。
  アラビア数字は日本語の「数の呼称」となじみが良いように思えます。
  
  (3)次のホームページには、ダブル、トリプル、・・・などの言い方も出ています。
  http://sorarado.blog29.fc2.com/blog-category-17.html
  シングル (single)
  ダブル (double)
  トリプル (triple)
  クァドラプル (quadruple)
  クインティプル (quintuple)
  セクスタプル (sextuple)
  セプタプル (septuple)
  オクタプル (octuple)
  ノナプル (nonuple)
  ディカプル (decuple)
  
  (4)ローマ数字(T、U、V、・・・X、・・]、・・)とともに、一万重奏(decemmilletet)一万倍(decemmillenuple) までの呼称が次のホームページに記載されていました。
  http://forums.d2jsp.org/topic.php?t=27687660&f=13&o=39980
  
  1 Tsingle solo
  2 Ubi-, duo-, sec- secondary binary biennial binal duple, double duet
  3 Vtri-, tre-, ter- tertiary ternary triennial tertial triple, treble trio
  4 Wquadri-, quater-, quart- quaternary quaternary quadrennial quartal quadruple 
  quartet
  5 Xquinque-, quint- quinary quinary quinquennial quintal quintuple quintet
  6 Ysexa-, ses-, sen- senary senary sexennial sextal sextuple sextet
  7 Zsepte- septenary septenary septennial septimal septuple septet
  8 [octo- octonary octonary octennial octal octuple octet
  9 \novem-, nona- nonary nonary novennial nonal nonuple nonet
  10 ]deci- denary denary decennial decimal decuple dectet
  11 ]Tundeci- undenary undenary undecennial undecimal undecuple undectet
  12 ]U duodeci- duodenary duodenary duodecennial duodecimal duodecuple duodectet
  13 ]V tredeci- tredenary tredenary tredecennial tredecimal tredecuple tredectet
  14 ]W quattuordeci- quattuordenary quattuordenary quattuordecennial quattuordecimal 
  quattuordecuple quattuordectet
  15 ]X quindeci- quindenary quindenary quindecennial quindecimal quindecuple 
  quindectet
  16 ]Y sexdeci- sedenary sedenary sexdecennial sexdecimal sexdecuple sexdectet
  17 ]Z septendeci- septendenary septendenary septendecennial septendecimal septendecuple 
  septendectet
  18 ][ octodeci-, duodeviginti- octodenary octodenary octodecennial octodecimal 
  octodecuple octodectet
  19 ]\ novemdeci-, undeviginti- novemdenary novemdenary novemdecennial novemdecimal 
  novemdecuple novemdectet
  20 ]] viginti-, vice- vigenary vigenary vigintennial vigesimal vigenuple vigetet
  21 ]]T unviginti- unvigenary unvigenary unvigintennial unvigesimal unvigenuple 
  unvigetet
  22 ]]U duoviginti- duovigenary duovigenary duovigintennial duovigesimal duovigenuple 
  duovigetet
  23 ]]V treviginti- trevigenary trevigenary trevigintennial trevigesimal trevigenuple 
  trevigetet
  24 ]]W quattuorviginti- quattuorvigenary quattuorvigenary quattuorvigintennial 
  quattuorvigesimal quattuorvigenuple quattuorvigetet
  25 ]]X quinviginti- quinvigenary quinvigenary quinvigintennial quinvigesimal 
  quinvigenuple quinvigetet
  26 ]]Y sexviginti- sexvigenary sexvigenary sexvigintennial sexvigesimal sexvigenuple 
  sexvigetet
  27 ]]Z septenviginti- septenvigenary septenvigenary septenvigintennial septenvigesimal 
  septenvigenuple septenvigetet
  28 ]][ octoviginti-, duodetriginta- octovigenary octovigenary octovigintennial 
  octovigesimal octovigenuple octovigetet
  29 ]]\ novemviginti-, undetriginta- novemvigenary novemvigenary novemvigintennial 
  novemvigesimal novemvigenuple novemvigetet
  30 ]]] triginta- trigenary trigenary trigintennial trigesimal trigenuple trigetet
  31 ]]]T untriginta- untrigenary untrigenary untrigintennial untrigesimal untrigenuple 
  untrigetet
  32 ]]]U duotriginta- duotrigenary duotrigenary duotrigintennial duotrigesimal 
  duotrigenuple duotrigetet
  33 ]]]V tretriginta- tretrigenary tretrigenary tretrigintennial tretrigesimal 
  tretrigenuple tretrigetet
  34 ]]]W quattuortriginta- quattuortrigenary quattuortrigenary quattuortrigintennial 
  quattuortrigesimal quattuortrigenuple quattuortrigetet
  35 ]]]X quintriginta- quintrigenary quintrigenary quintrigintennial quintrigesimal 
  quintrigenuple quintrigetet
  36 ]]]Y sextriginta- sextrigenary sextrigenary sextrigintennial sextrigesimal 
  sextrigenuple sextrigetet
  37 ]]]Z septentriginta- septentrigenary septentrigenary septentrigintennial 
  septentrigesimal septentrigenuple septentrigetet
  38 ]]][ octotriginta-, duodequadraginta- octotrigenary octotrigenary octotrigintennial 
  octotrigesimal octotrigenuple octotrigetet
  39 ]]]\ novemtriginta-, undequadraginta- novemtrigenary novemtrigenary novemtrigintennial 
  novemtrigesimal novemtrigenuple novemtrigetet
  40 ]]]] quadraginta- quadragenary quadragenary quadragintennial quadragesimal 
  quadragenuple quadragetet
  41 ]]]]T unquadraginta- unquadragenary unquadragenary unquadragintennial unquadragesimal 
  unquadragenuple unquadragetet
  42 ]]]]U duoquadraginta- duoquadragenary duoquadragenary duoquadragintennial 
  duoquadragesimal duoquadragenuple duoquadragetet
  43 ]]]]V trequadraginta- trequadragenary trequadragenary trequadragintennial 
  trequadragesimal trequadragenuple trequadragetet
  44 ]]]]W quattuorquadraginta- quattuorquadragenary quattuorquadragenary quattuorquadragintennial 
  quattuorquadragesimal quattuorquadragenuple quattuorquadragetet
  45 ]]]]X quinquadraginta- quinquadragenary quinquadragenary quinquadragintennial 
  quinquadragesimal quinquadragenuple quinquadragetet
  46 ]]]]Y sexquadraginta- sexquadragenary sexquadragenary sexquadragintennial 
  sexquadragesimal sexquadragenuple sexquadragetet
  47 ]]]]Z septenquadraginta- septenquadragenary septenquadragenary septenquadragintennial 
  septenquadragesimal septenquadragenuple septenquadragetet
  48 ]]]][ octoquadraginta-, duodequinquaginta- octoquadragenary octoquadragenary 
  octoquadragintennial octoquadragesimal octoquadragenuple octoquadragetet
  49 ]]]]\ novemquadraginta-, undequinquaginta- novemquadragenary novemquadragenary 
  novemquadragintennial novemquadragesimal novemquadragenuple novemquadragetet
  50 Lquinquaginta- quinquagenary quinquagenary quinquagintennial quinquagesimal 
  quinquagenuple quinquagetet
  51 LT unquinquaginta- unquinquagenary unquinquagenary unquinquagintennial unquinquagesimal 
  unquinquagenuple unquinquagetet
  52 LU duoquinquaginta- duoquinquagenary duoquinquagenary duoquinquagintennial 
  duoquinquagesimal duoquinquagenuple duoquinquagetet
  53 LV trequinquaginta- trequinquagenary trequinquagenary trequinquagintennial 
  trequinquagesimal trequinquagenuple trequinquagetet
  54 LW quattuorquinquaginta- quattuorquinquagenary quattuorquinquagenary quattuorquinquagintennial 
  quattuorquinquagesimal quattuorquinquagenuple quattuorquinquagetet
  55 LX quinquinquaginta- quinquinquagenary quinquinquagenary quinquinquagintennial 
  quinquinquagesimal quinquinquagenuple quinquinquagetet
  56 LY sexquinquaginta- sexquinquagenary sexquinquagenary sexquinquagintennial 
  sexquinquagesimal sexquinquagenuple sexquinquagetet
  57 LZ septenquinquaginta- septenquinquagenary septenquinquagenary septenquinquagintennial 
  septenquinquagesimal septenquinquagenuple septenquinquagetet
  58 L[ octoquinquaginta-, duodesexaginta- octoquinquagenary octoquinquagenary 
  octoquinquagintennial octoquinquagesimal octoquinquagenuple octoquinquagetet
  59 L\ novemquinquaginta-, undesexaginta- novemquinquagenary novemquinquagenary 
  novemquinquagintennial novemquinquagesimal novemquinquagenuple novemquinquagetet
  60 L] sexaginta- sexagenary sexagenary sexagintennial sexagesimal sexagenuple 
  sexagetet
  61 L]T unsexaginta- unsexagenary unsexagenary unsexagintennial unsexagesimal 
  unsexagenuple unsexagetet
  62 L]U duosexaginta- duosexagenary duosexagenary duosexagintennial duosexagesimal 
  duosexagenuple duosexagetet
  63 L]V tresexaginta- tresexagenary tresexagenary tresexagintennial tresexagesimal 
  tresexagenuple tresexagetet
  64 L]W quattuorsexaginta- quattuorsexagenary quattuorsexagenary quattuorsexagintennial 
  quattuorsexagesimal quattuorsexagenuple quattuorsexagetet
  65 L]X quinsexaginta- quinsexagenary quinsexagenary quinsexagintennial quinsexagesimal 
  quinsexagenuple quinsexagetet
  66 L]Y sexsexaginta- sexsexagenary sexsexagenary sexsexagintennial sexsexagesimal 
  sexsexagenuple sexsexagetet
  67 L]Z septensexaginta- septensexagenary septensexagenary septensexagintennial 
  septensexagesimal septensexagenuple septensexagetet
  68 L][ octosexaginta-, duodeseptuaginta- octosexagenary octosexagenary octosexagintennial 
  octosexagesimal octosexagenuple octosexagetet
  69 L]\ novemsexaginta-, undeseptuaginta- novemsexagenary novemsexagenary novemsexagintennial 
  novemsexagesimal novemsexagenuple novemsexagetet
  70 L]] septuaginta- septuagenary septuagenary septuagintennial septuagesimal 
  septuagenuple septuagetet
  71 L]]T unseptuaginta- unseptuagenary unseptuagenary unseptuagintennial unseptuagesimal 
  unseptuagenuple unseptuagetet
  72 L]]U duoseptuaginta- duoseptuagenary duoseptuagenary duoseptuagintennial 
  duoseptuagesimal duoseptuagenuple duoseptuagetet
  73 L]]V treseptuaginta- treseptuagenary treseptuagenary treseptuagintennial 
  treseptuagesimal treseptuagenuple treseptuagetet
  74 L]]W quattuorseptuaginta- quattuorseptuagenary quattuorseptuagenary quattuorseptuagintennial 
  quattuorseptuagesimal quattuorseptuagenuple quattuorseptuagetet
  75 L]]X quinseptuaginta- quinseptuagenary quinseptuagenary quinseptuagintennial 
  quinseptuagesimal quinseptuagenuple quinseptuagetet
  76 L]]Y sexseptuaginta- sexseptuagenary sexseptuagenary sexseptuagintennial 
  sexseptuagesimal sexseptuagenuple sexseptuagetet
  77 L]]Z septenseptuaginta- septenseptuagenary septenseptuagenary septenseptuagintennial 
  septenseptuagesimal septenseptuagenuple septenseptuagetet
  78 L]][ octoseptuaginta-, duodeoctoginta- octoseptuagenary octoseptuagenary 
  octoseptuagintennial octoseptuagesimal octoseptuagenuple octoseptuagetet
  79 L]]\ novemseptuaginta-, undeoctoginta- novemseptuagenary novemseptuagenary 
  novemseptuagintennial novemseptuagesimal novemseptuagenuple novemseptuagetet
  80 L]]] octoginta- octogenary octogenary octogintennial octogesimal octogenuple 
  octogetet
  81 L]]]T unoctoginta- unoctogenary unoctogenary unoctogintennial unoctogesimal 
  unoctogenuple unoctogetet
  82 L]]]U duooctoginta- duooctogenary duooctogenary duooctogintennial duooctogesimal 
  duooctogenuple duooctogetet
  83 L]]]V treoctoginta- treoctogenary treoctogenary treoctogintennial treoctogesimal 
  treoctogenuple treoctogetet
  84 L]]]W quattuoroctoginta- quattuoroctogenary quattuoroctogenary quattuoroctogintennial 
  quattuoroctogesimal quattuoroctogenuple quattuoroctogetet
  85 L]]]X quinoctoginta- quinoctogenary quinoctogenary quinoctogintennial quinoctogesimal 
  quinoctogenuple quinoctogetet
  86 L]]]Y sexoctoginta- sexoctogenary sexoctogenary sexoctogintennial sexoctogesimal 
  sexoctogenuple sexoctogetet
  87 L]]]Z septoctoginta- septoctogenary septoctogenary septoctogintennial septoctogesimal 
  septoctogenuple septoctogetet
  88 L]]][ octooctoginta-, duodenonaginta- octooctogenary octooctogenary octooctogintennial 
  octooctogesimal octooctogenuple octooctogetet
  89 L]]]\ novemoctoginta-, undenonaginta- novemoctogenary novemoctogenary novemoctogintennial 
  novemoctogesimal novemoctogenuple novemoctogetet
  90 L]]]] nonaginta- nonagenary nonagenary nonagintennial nonagesimal nonagenuple 
  nonagetet
  91 L]]]]T unnonaginta- unnonagenary unnonagenary unnonagintennial unnonagesimal 
  unnonagenuple unnonagetet
  92 L]]]]U duononaginta- duononagenary duononagenary duononagintennial duononagesimal 
  duononagenuple duononagetet
  93 L]]]]V trenonaginta- trenonagenary trenonagenary trenonagintennial trenonagesimal 
  trenonagenuple trenonagetet
  94 L]]]]W quattuornonaginta- quattuornonagenary quattuornonagenary quattuornonagintennial 
  quattuornonagesimal quattuornonagenuple quattuornonagetet
  95 L]]]]X quinnonaginta- quinnonagenary quinnonagenary quinnonagintennial quinnonagesimal 
  quinnonagenuple quinnonagetet
  96 L]]]]Y sexnonaginta- sexnonagenary sexnonagenary sexnonagintennial sexnonagesimal 
  sexnonagenuple sexnonagetet
  97 L]]]]Z septennonaginta- septennonagenary septennonagenary septennonagintennial 
  septennonagesimal septennonagenuple septennonagetet
  98 L]]]][ octononaginta-, duodecenti- octononagenary octononagenary octononagintennial 
  octononagesimal octononagenuple octononagetet
  99 L]]]]\ novemnonaginta-, undecenti- novemnonagenary novemnonagenary novemnonagintennial 
  novemnonagesimal novemnonagenuple novemnonagetet
  100 C centum-, centi- centenary centenary centennial centesimal centuple centet
  
  200 CC ducenti-, bicenti- bicentenary bicentenary bicentennial bicentesimal 
  bicentuple bicentet
  300 CCC trecenti-, tricenti- tricentenary tricentenary tricentennial tricentesimal 
  tricentuple tricentet
  400 CCCC quadringenti-, quadricenti- quadricentenary quadricentenary quattuorcentennial 
  quadricentesimal quadricentuple quadricentet
  500 D quingenti-, quincenti- quincentenary quincentenary quinquacentennial quincentesimal 
  quincentuple quincentet
  600 DC sescenti-, sexcenti- sexcentenary sexcentenary sexacentennial sexcentesimal 
  sexcentuple sexcentet
  700 DCC septingenti-, septemcenti- septemcentenary septemcentenary septuacentennial 
  septemcentesimal septemcentuple septemcentet
  800 DCCC octingenti-, octocenti- octocentenary octocentenary octocentennial 
  octocentesimal octocentuple octocentet
  900 DCCCC nongenti-, novemcenti- novemcentenary novemcentenary novemcentennial 
  novemcentesimal novemcentuple novemcentet
  1,000 M mille-, milia- millenary millenary millennial millesimal millenuple 
  milletet
  2,000 MM duomilia-, bimilia- bimillenary bimillenary bimillennial bimillesimal 
  bimillenuple bimilletet
  3,000 MMM tresmilia-, trimilia- trimillenary trimillenary trimillennial trimillesimal 
  trimillenuple trimilletet
  4,000 MMMM quattuormilia-, quadrimilia- quadrimillenary quadrimillenary quadrimillennial 
  quadrimillesimal quadrimillenuple quadrimilletet
  5,000 (*) quinquemilia-, quinmilia- quinmillenary quinmillenary quinmillennial 
  quinmillesimal quinmillenuple quinmilletet
  6,000 (*) M sexmilia- sexmillenary sexmillenary sexmillennial sexmillesimal 
  sexmillenuple sexmilletet
  7,000 (*) MM septemmilia- septemmillenary septemmillenary septemmillennial septemmillesimal 
  septemmillenuple septemmilletet
  8,000 (*) MMM octomilia- octomillenary octomillenary octomillennial octomillesimal 
  octomillenuple octomilletet
  9,000 (*) MMMM novemmilia- novemmillenary novemmillenary novemmillennial novemmillesimal 
  novemmillenuple novemmilletet
  10,000 (**)decemmilia- decemmillenary decemmillenary decemmillennial decemmillesimal 
  decemmillenuple decemmilletet
  
5000 (*) I、逆C、逆Cを並べて書く
  10000(**) CCI、逆C、逆Cを並べて書く
  WIKIローマ数字http://ja.wikipedia.org/wiki/%E3%83%AD%E3%83%BC%E3%83%9E%E6%95%B0%E5%AD%97