| Word | Meaning | Occurrences |
|---|---|---|
| fluvius | river | 81 |
| fluxus | flow, flux | 20 |
| focaria | kitchen maid, cook | 1 |
| focus | fire-place, hearth | 4 |
| fodio | to dig, to pierce | 50 |
| foede | foully, cruelly | 1 |
| foederatus | allied | 4 |
| foedero | to establish by treaty | 3 |
| foeditas | foulness, filthiness | 3 |
| foedo | to defile, to dishonor | 1 |
| foedus | covenant, compact; foul, loathsome | 213 |
| foenerator | money-lender | 5 |
| foenero | to lend at interest | 7 |
| foeneror | to lend at interest | 10 |
| foenum | grass, hay | 61 |
| foenus | interest, loan | 5 |
| foeteo | to stink | 4 |
| foeto | to breed, bring forth offspring | 1 |
| foetor | stench | 7 |
| foetosus | prolific, fruitful | 1 |
| foetus | offspring; pregnant | 10 |
| folium | leaf | 29 |
| folliculus | small bag, sack | 1 |
| fomes | kindling, tinder | 2 |
| fons | spring, fountain | 110 |
| for | to speak, utter | 1 |
| foramen | opening, hole | 20 |
| foras | outside | 94 |
| forceps | tongs | 6 |
| forensis | belonging to the forum, public | 2 |
| forinsecus | on the outside, outward | 15 |
| foris | outside, abroad; door, gate | 85 |
| forma | form, shape | 36 |
| formator | former, fashioner | 2 |
| formella | little form, mould | 1 |
| formica | ant | 2 |
| formido | to fear; fear | 31 |
| formidulosus | producing fear, dreadful | 4 |
| formo | to shape, form | 37 |
| formosus | finely formed, beautiful | 6 |
| fornax | furnace, oven | 31 |
| fornicaria | adulteress, prostitute | 7 |
| fornicarius | fornicator, prostitute | 9 |
| fornicatio | fornication | 95 |
| fornicator | fornicator | 10 |
| fornicor | to fornicate | 71 |
| fornix | arch, vault | 2 |
| forsitan | perhaps | 45 |
| fortasse | perhaps | 1 |
| forte | by chance, perhaps | 231 |
| fortis | strong, brave | 366 |
| fortiter | strongly, vigorously | 30 |
| fortitudo | strength, fortitude | 212 |
| fortuitu | by chance | 1 |
| fortuna | fortune, fate | 1 |
| fortunatus | Fortunatus | 4 |
| forum | public place, market | 23 |
| fossa | ditch, trench | 9 |
| fovea | pit | 35 |
| foveo | to keep warm, to cherish | 10 |
| fractio | breaking | 4 |
| fractura | breach, fracture | 3 |
| fragilis | easily broken, fragile | 3 |
| fragmen | broken piece, fragment | 5 |
| fragmentum | piece broken off, fragment | 21 |
| fragor | crashing, crash | 1 |
| fragrantia | scent, odor | 2 |
| fragro | to emit a smell, to smell | 1 |
| framea | spear, sword | 5 |
| frango | to break, shatter | 67 |
| frater | brother | 1415 |
| fraternitas | brotherhood | 20 |
| fraternus | of a brother, brotherly | 1 |
| fraudo | to cheat, defraud | 19 |
| fraudulenter | deceitfully, by fraud | 11 |
| fraudulentia | deceitfulness, fraud | 3 |
| fraudulentus | cheating, deceitful | 7 |
| fraus | fraud, deceit | 12 |
| fremitus | roaring, snorting | 4 |
| fremo | to roar, snort | 12 |