Where does “jäämurtaja” come from?

jäämurtaja (Finnish) comes from Finnish murtaja, from Finnish jä, from Proto-Finno-Ugric *ja, from Proto-Germanic jahw, from Proto-Germanic -hw, from Proto-Germanic -hwe, from Proto-Indo-European -kʷe — and; Forms distributives from interrogatives.

Ancestry of “jäämurtaja”, step by step

jäämurtaja traces back through two separate lines of ancestry.

via Finnish murtaja

StepLanguageWordMeaning
1Finnishmurtajabreaker; cracker; Short for jäänmurtaja
2Finnishice
3Proto-Finno-Ugric*ja
4Proto-Germanicjahwand, also
5Proto-Germanic-hwand; Forms distributives from interrogatives
6Proto-Germanic-hwe
7Proto-Indo-European-kʷeand; Forms distributives from interrogatives

via Finnish jää

StepLanguageWordMeaning
1Finnishjääice; rock; in the expression on the rocks =...
2Proto-Finnicjääice
3Proto-Uralicjäŋeice
Every word from Proto-Indo-European -kʷeEvery word from Proto-Germanic -hwEvery word from Proto-Germanic jahw
jäämurtaja — Etymology, Origin & Word History | Etymology Explorer