Where does “vapaaratas” come from?

vapaaratas (Finnish) comes from Finnish vapaa, from Finnish vapada, from Old East Slavic свободь, from Proto-Slavic svoboda, from Proto-Slavic -oda.

vapaaratas (Finnish): freewheel device in a transmission that disengages the driveshaft from the driven shaft when the driven shaft rotates faster than the driveshaft

Definitions

  1. freewheel device in a transmission that disengages the driveshaft from the driven shaft when the driven shaft rotates faster than the driveshaft

Ancestry of “vapaaratas”, step by step

vapaaratas traces back through two separate lines of ancestry.

via Finnish vapaa

StepLanguageWordMeaning
1Finnishvapaafree; free, off; spare, free
2Finnishvapada—
3Old East Slavicсвободьfree
4Proto-Slavicsvobodafreedom
5Proto-Slavic-oda—

via Finnish ratas

StepLanguageWordMeaning
1Finnishratascogwheel
2Proto-Finnicrat'aswheel; ? cart
Every word from Proto-Slavic -oda →Every word from Proto-Slavic svoboda →Every word from Old East Slavic свободь →