Etymology of the English word gearwheel
the English word gearwheel
derived from the English word gear
derived from the Old Norse word gervi
derived from the Old Norse word gervi
derived from the Proto-Germanic root *garwin-
derived from the Proto-Indo-European root *yēr-
derived from the English word wheel
derived from the Proto-Indo-European root *kʷel-
derived from the Proto-Germanic root *khwekhwlan