English Number Prefixes
| 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 |
