Where does “flywheel” come from?

Flywheel is a compound of fly (from Middle English flien, Old English flȳġe, Proto-Germanic fleuganą, ultimately from Proto-Indo-European kʷel- meaning to turn or move round) and wheel (from Old English hwēol, Proto-Germanic hwewlą, Proto-Indo-European kʷékʷlos).

flywheel (English): A rotating mass used to maintain the speed of a...

Definitions

  1. A rotating mass used to maintain the speed of a...

Ancestry of “flywheel”, step by step

flywheel traces back through two separate lines of ancestry.

via English fly

StepLanguageWordMeaning
1EnglishflyAny insect of the order Diptera; characterized by...
2Middle EnglishflienTo fly; to travel in the air; To move in the sky;...
3Old Englishflēoganto fly
4Old English-endeequivalent of English -ing; suffix for present...
5Proto-West Germanic*-andī
6Proto-Germanic-andz
7Proto-Indo-European-óntsDerives nouns denoting body parts
8Hungarianöntto pour; to cast; accusative singular of ön
9Hungarianönyou
10Hungarianön-self-
11Turkishönfront
12Ottoman Turkishاوكvoice (of human or animal); sound
13Proto-Turkicǖnsound, voice

via English wheel

StepLanguageWordMeaning
1EnglishwheelA circular device capable of rotating on its...
2Middle EnglishwhelA wheel circular device for motion
3Old Englishhwēolwheel
4Proto-Germanichweulōnominative/vocative/accusative plural of *hwehwlą
5Proto-Indo-Europeankʷékʷléh₂
6Proto-Indo-Europeankʷékʷloswheel; circle
7Proto-Indo-Europeankʷel-to turn

Words derived from “flywheel

Every word from Proto-Turkic ǖn
flywheel — Etymology, Origin & Word History | Etymology Explorer