[English词汇]一元的，二元的，三元的，四元的……

〇元的nullary(0-ary)

一元的unary(1-ary)

二元的binary(2-ary)

三元的ternary(3-ary)

四元的quaternary(4-ary)

五元的quinary(5-ary)

六元的senary(6-ary)

七元的septenary(7-ary)

八元的octary(8-ary)

九元的nonary(9-ary)

十元的denary(10-ary)

十一元的undenary(11-ary)

十二元的duodenary(12-ary)

十三元的tridenary(13-ary)

十四元的quattuordenary(14-ary)

十五元的quindenary(15-ary)

十六元的sedenary(16-ary)

十七元的septendenary(17-ary)

十八元的decenoctonary(18-ary)

十九元的decennonary(19-ary)

二十元的vigenary(20-ary)

三十元的tricenary(30-ary)

四十元的quadragenary(40-ary)

五十元的quinquagenary(50-ary)

六十元的sexagenary(60-ary)

七十元的septuagenary(70-ary)

八十元的octogenary(80-ary)

九十元的nonagenary(90-ary)

一百元的centenary(100-ary)

一千元的millenary(1000-ary)

Polyadic or multary (or multiary) means any number of operands (or parameters).

n-ary means n operands (or parameters), but is often used as a synonym of "polyadic".

These words are often used to describe anything related to that number

(e.g., undenary chess is a chess variant with an 11×11 board, or the Millenary Petition of 1603).

资料：

Numbers, Numerical Adjectives, Prefixes for Numbers

Table 1: Latin-Prefixed Numerical Words

Numeral Prefix Base Relation 1 unus uni N/A unary 2 duo bi/duo binal binary 3 tres,tria tri trial,tertial trinary, ternary 4 quattuor quadri/quart quartal quaternary 5 quinque quinque/quint quintal quinary, quinquenary 6 sex sex(t),se sextal senary, sexenary 7 septem sep(t) septimal septenary 8 octo oct octal,octaval octonary 9 novem nonus/novem nonal nonary 10 decem dec(a),de decimal denary 11 undecim undec,unde undecimal undenary 12 duodecim duodec,duode duodecimal duodenary

Table 2: Latin Numerical Words: 13 to 1000

Numeral Prefix Base Relation 13 tredecim tredec,tridec *tridecimal *tridenary 14 quattuordecim quatuordec *quatuordecimal *quatuordenary 15 quindecim quinde(c) *quindecimal quindenary 16 sedecim sede(c) hexadecimal *sedenary 17 septendecim septende(c) septendecimal *septendenary 18 duodeviginti decennoct *decennoctal *decenoctonary 19 undeviginti decennov decennoval *decennonary 20 viginti vige,vice vigesimal vigenary 30 triginta trige,trice trigesimal tricenary 40 quadraginta quadrage quadragesimal quadragenary 50 quinquaginta quinquage quinquagesimal quinquagenary 60 sexaginta sexage sexagesimal sexagenary 70 septuaginta septuage septuagesimal septuagenary 80 octoginta octage octagesimal octogenary 90 nonaginta nonage nonagesimal nonagenary 100 centum cente centesimal centenary 1000 mille mille millesimal millenary

He puts an asterisk on the names he admits to inventing (following natural rules). Note that the "base" and "relation" columns are often mixed up in reality.