Where does “vihmakaari” come from?

vihmakaari (Ingrian) comes from Ingrian vihma, from Proto-Finnic vihma — rain.

Ancestry of “vihmakaari”, step by step

vihmakaari traces back through two separate lines of ancestry.

via Ingrian vihma

StepLanguageWordMeaning
1Ingrianvihmarain
2Proto-Finnicvihmarain

via Ingrian kaari

StepLanguageWordMeaning
1Ingriankaaribow
Every word from Proto-Finnic vihmaEvery word from Ingrian vihma