Numerical Latin/Greek Prefixes (IP082E)

 

Númber Greek Prefix Latin Prefix
1/2 hemi semi
1 mono or mon Uni
2 di bi or duo
3 tri Tri or ter
4 Tetra or tetr quadri or quadr
5 penta oru pent quinque or quinqu
6 hexa or hex sexi or sex
7 hepta or hept septi or sept
8 octa or octo octo
9 enne or ennea nona or novem
10 deca or dec decem
11 hendeca or hendec undeca or undec
12 dodeca or dodec duodec
13 trideca or tridec tredec
14 tetradeca or tetradec quatrodec
15 pentadeca or pentadec quindec
16 hexadeca or dexadec sextodec
17 heptadeca or heptdec septendec
18 octadeca or octodec octodec
19 nonadeca or nonadec novendec
20 Eicosa, icos or eicos -
21 heneicosa or eicos -
22 docosa or docos -
23 tricosa or tricos -
24 tetracosa or tetracos -
25 pentacosa or pentacos -
26 hexacosa or hexacos -
27 heptacosa or heptacos -
28 octacosa or octacos -
29 nonacosa no nocacos -
30 triaconta or triacont tringti
31 hentriaconta or hentriacont -
32 dotriacont or dotriacont -
40 tetrconta or tetracont quadragin
50 pentaconta or pentacont quinquingin

 

Example:

Icosahedron – polyhedron with 20 triangular faces

Hexadecimal – numerical system using 16 symbols

Triacontrahedron – polyhedron with 30 rhombic faces as bellow.

 

Triacontrahedron
Triacontrahedron