| Icel.(a.litt.) | flogra | to flutter |
| Norsk | flaggermus | bat, 16.2 |
| Gael.S. | fallag | Sand Martin, 320 |
| Gael.I. | falbh | waiving, moving about |
| Gael.S. | falbhag | Swallow, 316; Common Tern, 97 |
| Span. | falda | skirt |
| Franç. | falbala | ornament, flounceð6.2.13. |
| Breton | flogor | light (soil) |
| Engl. | flog | to whip |
| Franç. | flageller | to whip ð6.2.8. |
| Franç. | fléau | flail |
| Franç. | flageoler | to shake (at the knees) |
| Franç.rég. | flagotter, fligousser | agiter un liquide dans un vase, FEW 21: 392 |
| Franç.: Aiript | fliagoussá | se dit du bruit de liquide agité, FEW 22: 201 |
| Franç.: Montjean | liagosser | gargouiller, clapoter, FEW 23: 202 |
| Franç.: Barcelonnette | iòssa | secousse, FEW 21: 395 |
| Engl. | flag | to hang loosely; ensign, banner, pennant; flight feather |
| Engl. | flaag | flock of birds |
| Franç. | flagorner | to flatter |
| Svensk | flaga | flake, defect |
| Engl. | flaw | defect |
| Germ.reg. | wegflagge, fliegholder | Nightjar, 251 |
| Germ.(OHG) | flagaron | to flutter |
| Germ. | flegel | flail |
| Germ.(OHG) | fliogen | Germ. fliegen |
| Engl. | fly | to move through the air using wings; an insect etc. |
| Engl. | flee | to run away from |
| Engl. | flight | to fly in flocks, emigrate (oiseaux), running away; cf. fluchtð6.2.7. |
| Engl. | flighty | light, frivolous |
| Engl. | fledgling | a young bird just out of the nest: flutters |
| Russian | fljûger | weather vane; frivolous person |
| Germ. | flügel | wing |
| Germ. | flüggel | butterfly |
| Dan. | fluggermaus | bat |
| Germ.: Suisse | ufflügerli | Water Pipit, 308 |
| Dutch | vleugel | wing |
| Germ.(MHG) | vlunke | wing; vlücke feathered |
| Germ.: N.Sax. | flunk | wing |
| Engl. | flunk | to fail |
| Engl. | flunkeyism | flattering, French flagornerie (above) |
| Franç. | flonger | tituber, FEW 21: 362 |
| ON | flengja | to flog (see above) |
| Engl. | fling | throw; tentative; a take off of birds |
| Franç.(a.litt.) | flingue, flingot | affûtoir de boucher; le rapport de flingue, flingot "fusil" avec l'affûtoir n'est pas clair: est-ce l'arme que l'on jette sur l'épaule ? (cf. mot précédent fling "jeter") |
| Anc.Greek | phlégo | to set on fire |
| Mod.Greek | flóga | flame |
| Anc.Greek | phlox | flame |
| Roman. | flacârâ | flame |
| Ital. | flagrare | to burn, shine |
| Ital. | fólgore | lighting, splendour |
| Ital. | fulgorare | to light, shine |
| Ital. | fulgido | shining, luminous |