Where does “raaistuttaa” come from?

raaistuttaa (Finnish) comes from Finnish raaistua, from Finnish raaistaa, from Finnish raaka, from Finnish raakaöljy, from Swedish råolja, from Swedish rå, from Swedish råda, from Old Swedish rāþa — to fit, to fix, to put together.

Ancestry of “raaistuttaa”, step by step

StepLanguageWordMeaning
1Finnishraaistuato become more brutal
2Finnishraaistaato brutalise/brutalize
3Finnishraakaraw; crude; rude, brutal
4Finnishraakaöljycrude oil
5Swedishråoljacrude oil
6Swedishraw; crude; rough
7Swedishrådato advise (give advice (to someone))
8Old Swedishrāþato ensure
9Old Norseráðato advise, counsel; to consult about, discuss; to...
10Proto-Germanicrēdanąto decide, advise
11Proto-Indo-EuropeanHreh₁dʰ-to think; to arrange; to succeed, accomplish
12Proto-Indo-Europeanh₂reh₁-to think, reason; to arrange
13Proto-Indo-Europeanh₂er-to fit, to fix, to put together
Every word from Proto-Indo-European h₂er-Every word from Proto-Indo-European h₂reh₁-Every word from Proto-Indo-European Hreh₁dʰ-