Where does “vaihtolava” come from?

vaihtolava (Finnish) comes from Finnish vaihto, from Finnish vaihtaa, from Proto-Finnic vaihtadak, from Proto-Finnic -tadak, from Proto-Uralic -ta- — Forms verbs from nouns; Forms causative verbs...

vaihtolava (Finnish): roll-off

Definitions

  1. roll-off

Ancestry of “vaihtolava”, step by step

vaihtolava traces back through two separate lines of ancestry.

via Finnish vaihto

StepLanguageWordMeaning
1Finnishvaihtoexchange; swap; shift key
2Finnishvaihtaato change, replace; to exchange, switch; to swap
3Proto-Finnicvaihtadakto change
4Proto-Finnic-tadakForms verbs from both nominal and verbal stems
5Proto-Uralic-ta-Forms verbs from nouns; Forms causative verbs...

via Finnish lava

StepLanguageWordMeaning
1Finnishlavabed; platform; stage
2Proto-Finniclavasleeping place, bed
3Proto-Balticlā́ˀwāˀ
Every word from Proto-Uralic -ta-Every word from Proto-Finnic -tadakEvery word from Proto-Finnic vaihtadak