I searched and the only useful explanation i found:

[Table of small numbers][1]


  [1]: http://en.wikipedia.org/wiki/List_of_numbers

   
**N-ary:** 

 - Nullary means 0-ary.

   

 - Unary means 1-ary.

    

 - Binary means 2-ary.

    

 - Ternary means 3-ary.

    

 - Quaternary means 4-ary.

    

 - Quinary means 5-ary.

    

 - Senary means 6-ary.

   

 - Septenary means 7-ary.

    

 - Octary means 8-ary.

    

 - Nonary means 9-ary.

    

Hope this helps.