Where does “jäälontti” come from?

jäälontti (Ingrian) comes from Ingrian jää, from Proto-Finnic jää, from Proto-Uralic jäŋe — ice.

Ancestry of “jäälontti”, step by step

jäälontti traces back through two separate lines of ancestry.

via Ingrian jää

StepLanguageWordMeaning
1Ingrianjääice
2Proto-Finnicjääice
3Proto-Uralicjäŋeice

via Ingrian lontti

StepLanguageWordMeaning
1Ingrianlontti(large) floe, ice raft
Every word from Proto-Uralic jäŋeEvery word from Proto-Finnic jääEvery word from Ingrian jää