| 1 | Middle English | luxurious | Lusty, lascivious; sexually transgressive;... |
| 2 | Old French | luxurios | — |
| 3 | French | luxurieux | lustful |
| 4 | Latin | luxuriosus | rank, luxuriant, exuberant; luxurious,... |
| 5 | Latin | luxuria | luxury; extravagance |
| 6 | Latin | -ia | Used to form a feminine abstract noun, usually... |
| 7 | Latin | -ius | forming adjectives from nouns; nominative neuter... |
| 8 | Proto-Italic | -jōs | Forms comparative adjectives |
| 9 | Proto-Indo-European | -yós | Creates adjectives from noun or verb stems |