| 1 | Old French | turbulent | — |
| 2 | Latin | turbulentus | stormy, turbulent; unruly, riotous |
| 3 | Latin | -ulentus | adjective-forming suffix meaning abounding in,... |
| 4 | Latin | -entus | adjective-forming suffix meaning abounding in,... |
| 5 | Latin | cruentus | bloody in its various senses, "particularly:" |
| 6 | Latin | cruor | blood, gore; murder, bloodshed |
| 7 | Proto-Indo-European | krewh₂- | blood outside the body |