| 1 | French | mousse | blunt; moss; bryophyte |
| 2 | Spanish | mozo | boy, lad, young man, youth; servant, helper,... |
| 3 | Latin | musteus | of or belonging to must; like must; young, new,... |
| 4 | Latin | mustum | must; unfermented or partially fermented grape... |
| 5 | Latin | mustus | fresh, young; unfermented |
| 6 | Proto-Indo-European | mūs- | fly, stinging fly, gnat; moist, damp; swamp,... |