Where does “suoristuminen” come from?

suoristuminen (Finnish) comes from Finnish suoristua, from Finnish suoristaa, from Finnish suora, from Proto-Finnic soora, from Arabic سُورَة — chapter of the Qur'an; sura.

Ancestry of “suoristuminen”, step by step

StepLanguageWordMeaning
1Finnishsuoristuato straighten
2Finnishsuoristaato straighten
3Finnishsuorastraight; straight, direct, truthful, frank;...
4Proto-Finnicsoorastraight
5Arabicسُورَةchapter of the Qur'an; sura
Every word from Arabic سُورَة →Every word from Proto-Finnic soora →Every word from Finnish suora →