Where does “suorasuinen” come from?

suorasuinen (Finnish) comes from Finnish suu, from Proto-Finnic süü, from Proto-Uralic śuwe — mouth.

Ancestry of “suorasuinen”, step by step

suorasuinen traces back through two separate lines of ancestry.

via Finnish suu

StepLanguageWordMeaning
1Finnishsuumouth
2Proto-Finnicsüüthread, fibre; annual ring; reason, cause
3Proto-Uralicśuwemouth

via Finnish suora

StepLanguageWordMeaning
1Finnishsuorastraight; straight, direct, truthful, frank;...
2Proto-Finnicsoorastraight
3Arabicسُورَةchapter of the Qur'an; sura
Every word from Proto-Uralic śuwe →Every word from Proto-Finnic süü →Every word from Finnish suu →