Where does “jäätuura” come from?

jäätuura (Finnish) comes from Finnish jää, from Proto-Finnic jää, from Proto-Uralic jäŋe — ice.

Ancestry of “jäätuura”, step by step

jäätuura traces back through two separate lines of ancestry.

via Finnish jää

StepLanguageWordMeaning
1Finnishjääice; rock; in the expression on the rocks =...
2Proto-Finnicjääice
3Proto-Uralicjäŋeice

via Finnish tuura

StepLanguageWordMeaning
1Finnishtuuraice chisel; a tool for breaking ice, consisting of a heavy chisel-like iron head which is attached to a long wooden handle to allow the use of the tool in standing position
Every word from Proto-Uralic jäŋeEvery word from Proto-Finnic jääEvery word from Finnish jää