| Gael.I. | friotáil | fluttering |
| Ital. | frotta | fouleð6.2.8. |
| Franç. | frotter | to rub |
| Engl. | fret | ornament, cf. frill, above |
| Franç. | fretin | multitude of small fish |
| Franç. | frétiller | to wiggle |
| Franç. | frétillet | Willow Warbler, 384, 385 |
| Franç. | frénésie | frenzy, agitation; état d'agitation fébrile ð6.2.26. |
| Franç.:P.d'En Haut | freinna | se mouvoir avec empressement, FEW 21: 360 |
| Cat. | passar farines | voler sur place (Kestrel, 234) |
| Engl. | fern | fougèreð6.2.25. et filixð6.2.6. |
| Franç. | frémir | frissonnerð6.2.16.; vibrerð6.2.26. |
| Franç. | fourmiller | to swarm |
| Franç. | fourmi | ant: swarming insect |
| Ital.reg. | furmenten | Whitethroat, 362 |
| Franç. | fermenter | to ferment |
| Franç.: Pic. | hermonner | remuer, FEW 21: 358 |
| Franç.: Percy | hermonner | secouer, FEW 21: 392 |
| Prov.: h.Dauph. | eijaramillé (s') | se tordre, FEW 21: 392 |
| Franç.: Albertville | zermouiller | gigoter, FEW 21: 392 |