| A | B |
| fac | to make; to do |
| factory | a place where things are made |
| faction | a small group within a large group |
| jud | judge |
| judicial | relating to courts of law |
| judgment | the act or process of judging |
| jur/jus | justice |
| jury | a group who decides the verdict in a court of law |
| justify | to make right; to give justice to |
| luc/lum | light |
| lucid | easily understood, clear, sane |
| illuminate | to brighten with light, make understood |
| mega | giant, large |
| megabyte | 1 million bytes |
| megadose | an overdose |
| ocu | eye, sight |
| binoculars | a pair of lenses for seeing long distances |
| oculist | a doctor who treats diseases of the eye |