Where does “tosituuli” come from?

tosituuli (Finnish) comes from Finnish tosi, from Proto-Finnic toci — truth.

tosituuli (Finnish): true wind natural wind or the wind a stationary observer would feel; used to differentiate from apparent wind, which is the wind observed aboard a moving vessel

Definitions

  1. true wind natural wind or the wind a stationary observer would feel; used to differentiate from apparent wind, which is the wind observed aboard a moving vessel

Ancestry of “tosituuli”, step by step

tosituuli traces back through two separate lines of ancestry.

via Finnish tosi

StepLanguageWordMeaning
1Finnishtositruth, reality, real thing; real-life; true
2Proto-Finnictocitruth

via Finnish Tuuli

StepLanguageWordMeaning
1FinnishTuuliwind
2FinnishTuulikkiA forest goddess, daughter of Tapio in the Kalevala
Every word from Proto-Finnic tociEvery word from Finnish tosi