Where does “säästöpuusto” come from?

säästöpuusto (Finnish) comes from Finnish puusto, from Russian пусто́й, from Old East Slavic поустъ, from Proto-Slavic pȗstъ — desolate; empty.

säästöpuusto (Finnish): retention trees collectively

Definitions

  1. retention trees collectively

Ancestry of “säästöpuusto”, step by step

säästöpuusto traces back through two separate lines of ancestry.

via Finnish puusto

StepLanguageWordMeaning
1FinnishpuustoThe trees of an area collectively; the forest...
2Russianпусто́йfutile
3Old East Slavicпоустъ—
4Proto-Slavicpȗstъdesolate; empty

via Finnish säästö

StepLanguageWordMeaning
1Finnishsäästösaving reduction in expenditure
2FinnishsäästääTo save
3Proto-Finnicsäästädäkto put aside, to save
Every word from Proto-Slavic pȗstъ →Every word from Old East Slavic поустъ →Every word from Russian пусто́й →