| FACINUS, -ŎRIS [3] | | |
| FACULTAS, -ĀTIS [4] | | |
| FAMES, -IS [4] | | |
| FAX, FACIS [3] | | |
| FELICITAS, -ĀTIS [3] | | |
| FINIS, -IS [1] | | |
| FLOS, -ORIS [4] | | |
| FLUMEN, -INIS [1] | | |
| FOEDUS, -ĔRIS [4] | | |
| FONS, -TIS [2] | | |
| FORAMEN, -ĬNIS [3] | | |
| FORMIDO, -ĬNIS [4] | | |
| FRATER, -RIS [1] | | |
| FRAUS, -DIS [3] | | |
| FRIGUS, -ŎRIS [3] | | |
| FRONS, FRONDIS [4] | | |
| FRONS, FRONTIS [2] | | |
| FRUX, -GIS [4] | | |
| FULMEN, -ĬNIS [3] | | |
| FUNUS, -ĔRIS [3] | | |
| FUROR, -ŌRIS [2] | | |
| GENITOR, -ŌRIS [4] | | |