| Breton | lusk | momentum |
| Engl. | lust | pleasure, desire, Germ. lust |
| Span. | listo | prompt, active, lively |
| Lettish | slist | to crawl |
| Germ. | schleichen | to slide, crawl |
| Mod.Greek | olistheno | to slide |
| Franç. | glisser | to slide, crawl, etc. |
| Franç. | lisse | smooth |
| Engl. | lissome, lithe | supple, flexible |
| Franç. | lézard | lizard, Span. lagartoð11.3. |
| Czech | lezení | to climb |
| Czech | lezek, plazák | Tree-creeper, 405 |
| Lettish | liesma | flame, Ital. lietað11.5. |
| Lettish | lauzties | to fight, French lutterð11.5. |
| Lettish | luzums | about face |
| Lettish | luozdna | Swallow, 316 |
| Engl. | loose | loose, free ð11.1. |
| Breton | laosk | loose |
| Franç. | lâche | loose, slack, cowardly |
| l. | lascivus | playful |
| Franç.: Bionaz (AO) | leusse | woman of easy virtue |
| Germ. | löss | a kind of light, friable soil |
| Prov. | liso | mud (whence French s'enliser, to sink in mud; cf. lico, ci-dessus) |
| Franç. | lisier | liquide manure |