Latin & Greek Numerals & Prefixes

These words are made by combining a prefix derived from Latin or Greek number words and a suffix indicating the type or category of the thing being counted.

Table 1: Latin-Prefixed Numerical Words
	Numeral	Prefix
1	unus	uni
2	duo	bi/duo
3	tres, tria	tri
4	quattuor	quadri/quart
5	quinque	quinque/quint
6	sex	sex(t), se
7	septem	sept
8	octo	oct
9	novem	nonus/novem
10	decem	dec(a), de

Table 2: Greek-Prefixed Numerical Words
	Numeral		Prefix
1	en		mono
2	dyo/duo/di	di/dy
3	treis, tria	tri
4	tessera	tetra
5	pente	penta
6	hexa	hex
7	hepta	hept
8	okto	oct
9	ennea	ennea
10	deka	dec(a)

Adopted from:

http://phrontistery.info/numbers.html