| 1 | Vulgar Latin | queto | — |
| 2 | Late Latin | quieto | to quiet; acquit, discharge, release; to quiet,... |
| 3 | Latin | quieto | to quiet, calm |
| 4 | Latin | quietor | I calm, quiet |
| 5 | Latin | quietus | at rest/nap, quiet, keeping quiet; peaceful,... |
| 6 | Latin | quiescere | present active infinitive of quiēscō; to keep... |
| 7 | Latin | quiesco | I rest, sleep, repose; I cause to cease, stop,... |
| 8 | Latin | quies | rest, repose, quiet, calm, lull; dream;... |
| 9 | Proto-Italic | kʷiētis | — |
| 10 | Proto-Indo-European | kʷyéh₁tis | — |
| 11 | Proto-Indo-European | kʷyeh₁- | to rest; rest, peace |