| Anc.Greek | physa | breath, wind |
| Anc.Greek | phýsis | nature: that which is animated |
| Franç.: Ollon | fezecaye | embrasement subit, FEW 23: 48 |
| Lat. | fusio | action de répandre |
| Lat. | festuca | a grass, cf. fétuð6.2.8. |
| Franç.: Isle | hüsnè | grelotter, FEW 21: 362 |
| Franç.: Fresnay | hicher | grelotter, FEW 21: 362 |
| Engl. | fast | rapid, cf. franç. viteð6.2.8. |
| Norsk | fjas | agitation |
| Norsk | fjussa | to precipitate |
| Germ. | fussig | weakð6.2.27. |
| Engl. | fiss | ostentation (cf. fuss, below) |
| Engl. | fizz | effervescence |
| Engl. | fuzz | fluffy matter |
| Engl.: Scot. | fuss | fluffy |
| Engl. | fuss | chichi, frillð6.2.16. |
| Alb. | fucoj | pilferð6.2.1. |
| Alb. | fshi | sweeps |
| Alb. | fshik | whips, touch lightly |
| Span. | fustigar | to whip |