Common Number Prefixes, Number Prefixes 1-10
| Number | Latin | Greek | Examples |
| 1 | uni– | Mono- | universe, monotheism, uniform, unicorn |
| 2 | bi– du– | Di– | Duo, bimonthly, binary, binoculars, |
| 3 | –tri | Tri– | Triad, tricycle, triangle, triathlon, triple |
| 4 | quadri– | Tetra– | quadrangle, quarter, quadruple, quadriplegic, tetramer |
| 5 | quin– | Penta– | quintet, quintuplet, pentagon, pentavalent |
| 6 | sext– | Hexa– | hexameter, hexagon, sextuplet |
| 7 | septem–septi– | Hepta– | heptameter, heptagon, heptagon |
| 8 | octa– oct– | Octo– | octagon, octopus, octahedron, octaves |
| 9 | novem– | Ennea– | November, Enneagram |
| 10 | decem–deci– | Deca– | decagon, decade, decahedron, decibels, decimal |
| 100 | cente– cent– | Hecto– | centennial, cent, centenary |
| 1000 | mille- milli- | Kilo- | kilometer, kilogram, kilobyte, milligram, millenary |
| Many | multi– | Poly– | polygamy, polygon polyester, polynomial, polymer |
| Half | semi- | Hemi– | semicircle, hemisphere, semicolon, semiannual, semifinal |
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