Where does “led-valaisin” come from?

led-valaisin (Finnish) comes from Finnish valaisin, from Finnish valaista, from Finnish valo, from Proto-Finnic valo, from Proto-Finno-Ugric waĺɜ.

Ancestry of “led-valaisin”, step by step

led-valaisin traces back through two separate lines of ancestry.

via Finnish valaisin

StepLanguageWordMeaning
1Finnishvalaisinlight fixture, luminaire, light fitting, lighting...
2Finnishvalaistato light, illuminate; to shed light on,...
3Finnishvalolight
4Proto-Finnicvalolight visible radiation
5Proto-Finno-Ugricwaĺɜ

via Finnish LED

StepLanguageWordMeaning
1FinnishLEDchiefly used as a modifier in compound terms
Every word from Proto-Finno-Ugric waĺɜEvery word from Proto-Finnic valoEvery word from Finnish valo
led-valaisin — Etymology, Origin & Word History | Etymology Explorer