Where does “thumbwheel” come from?

thumbwheel (English) comes from English wheel, from Middle English whel, from Old English hwēol, from Proto-Germanic hweulō, from Proto-Indo-European kʷékʷléh₂, from Proto-Indo-European kʷékʷlos, from Proto-Indo-European kʷel- — to turn.

thumbwheel (English): A small thumb or finger-operated wheel on a...

Definitions

  1. A small thumb or finger-operated wheel on a...

Ancestry of “thumbwheel”, step by step

thumbwheel traces back through two separate lines of ancestry.

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

via English thumb

StepLanguageWordMeaning
1EnglishthumbThe short thick digit of the hand that for humans...
2Middle Englishþombethumb; thumb-length; big toe
3Old Englishþūmathumb
4Proto-West Germanicþūmōthumb
5Proto-Germanicþūmôthumb
6Proto-Indo-Europeantūm-to grow; to swell, to increase; to swell, be...
7Proto-Indo-Europeantewh₂-to swell; to crowd; to be strong
Every word from Proto-Indo-European kʷel-Every word from Proto-Indo-European kʷékʷlosEvery word from Proto-Indo-European kʷékʷléh₂