English
turbulate
Turbulate comes from Latin turbulentus ‘stormy, turbulent’, from turba ‘disorder, tumult, crowd’, and perhaps ultimately from Proto-Indo-European *(s)twerH- ‘to rotate, swirl, twirl, move around’.
- Proto-Indo-Europeanc. 4500–2500 BCE*(s)twerH-1‘to rotate, swirl, twirl, move around’uncertain
- Ancient Greekc. 800–300 BCEτύρβη1‘tumult, disorder, turmoil’uncertain
- Latinc. 75 BCE–200 CEturba2‘disorder, tumult, crowd’
- Latinc. 75 BCE–200 CEturbulentus2‘stormy, turbulent’
- Middle Frenchc. 1400–1600turbulent2
- Middle Englishc. 1150–1500turbulent2
- Englishtodayturbulate2
attested reconstructed ? uncertain or disputed deepest recorded ancestor
- 1 Wiktionary, Latin turba
- 2 Wiktionary, English turbulate
Lineage
- Proto-Indo-Europeanc. 4500–2500 BCE*(s)twerH-Wiktionary, Latin turba‘to rotate, swirl, twirl, move around’uncertain
- Ancient Greekc. 800–300 BCEτύρβηWiktionary, Latin turba‘tumult, disorder, turmoil’uncertain
- Latinc. 75 BCE–200 CEturbaWiktionary, English turbulate‘disorder, tumult, crowd’
- Latinc. 75 BCE–200 CEturbulentusWiktionary, English turbulate‘stormy, turbulent’
- Middle Frenchc. 1400–1600turbulentWiktionary, English turbulate
- Middle Englishc. 1150–1500turbulentWiktionary, English turbulate
- EnglishtodayturbulateWiktionary, English turbulate
Linked words
through Proto-Indo-European *(s)twerH- ‘to rotate, swirl, twirl, move around’
through Latin turba ‘disorder, tumult, crowd’
Today it means
verb To turn (a laminar flow) into a turbulent flow.
Sources
Sources: Wiktionary, “turbulate”; the older steps come from the Wiktionary entry for Latin turba. By Wiktionary contributors, CC BY-SA 4.0, via kaikki.org (dump of Oct 3 2026); text adapted and restructured. Language periods are conventional ranges, not dates for this word. License.
Etymograph / Proto-Indo-European *(s)twerH- / turbulate