| Word | Meaning | Occurrences |
|---|---|---|
| fortiter | strongly, vigorously | 30 |
| fortis | strong, brave | 366 |
| forte | by chance, perhaps | 231 |
| fortasse | perhaps | 1 |
| forsitan | perhaps | 45 |
| fornix | arch, vault | 2 |
| fornicor | to fornicate | 71 |
| fornicator | fornicator | 10 |
| fornicatio | fornication | 95 |
| fornicarius | fornicator, prostitute | 9 |
| fornicaria | adulteress, prostitute | 7 |
| fornax | furnace, oven | 31 |
| formosus | finely formed, beautiful | 6 |
| formo | to shape, form | 37 |
| formidulosus | producing fear, dreadful | 4 |
| formido | to fear; fear | 31 |
| formica | ant | 2 |
| formella | little form, mould | 1 |
| formator | former, fashioner | 2 |
| forma | form, shape | 36 |