Common Number Prefixes, Greek, Latin, Meaning and Examples

Greek	Latin	Meaning	Examples
Mono-	uni–	1	monotheism, universe, uniform, unicorn, monotone
Di–	bi– du–	2	binary, bimonthly, binoculars, duo, düet
Tri–	–tri	3	tricycle, triad, triathlon, triangle, tripod, triumvirate, triple
Tetra–	quadri– quart–	4	quadriplegic, quadrangle, quadruple, quarter
Penta–	quin–	5	pentagon, quintet, quintuplet
Hexa–	sext–	6	hexagon, hexameter, sextuplet, sextet
Hepta–	septem– septi–	7	heptagon, heptameter, heptagon, septuagenarian
Octo–	octa– oct–	8	octagon, octogenarian, octopus, octahedron
Ennea–	novem–	9	novena
Deca–	deci– decem–	10	decade, decagon, decahedron, decimal
Hemi–	semi-	Half	hemisphere, semicircle, semicolon, semifinal, semiannual
Poly–	multi–	Many	polygon, polygamy, polyester, polymer, polynomial
Hecto–	cent– cente–	100	cent, centennial, centurion, centenary, cent
Kilo-	milli- mille-	1000	kilogram, kilometer, kilobyte, milligram