Where does “metsähyppyhiiri” come from?

metsähyppyhiiri (Finnish) comes from Finnish hyppyhiiri, from Finnish hyppy, from Finnish hypätä, from Proto-Finnic hüp'äit'äk, from Proto-Germanic huppōną, from Proto-Indo-European ḱewb-, from Proto-Indo-European ḱew-, from Proto-Indo-European gʷṓws — cattle.

Ancestry of “metsähyppyhiiri”, step by step

metsähyppyhiiri traces back through two separate lines of ancestry.

via Finnish hyppyhiiri

StepLanguageWordMeaning
1Finnishhyppyhiirispiny pocket mouse rodent of the subfamily Heteromyinae native to Central and South America
2Finnishhyppyjump; leap; vault
3FinnishhypätäTo jump, leap
4Proto-Finnichüp'äit'äkto jump, to leap
5Proto-Germanichuppōnąto move up and down; hop
6Proto-Indo-Europeanḱewb-briar, thorn
7Proto-Indo-Europeanḱew-skin, colour of the skin; to shine; bright; to...
8Proto-Indo-Europeangʷṓwscattle

via Finnish metsä

StepLanguageWordMeaning
1Finnishmetsäforest, woods; bush; hunting
2Proto-Finnic*meccä
3Proto-Balticmedjas
Every word from Proto-Indo-European gʷṓwsEvery word from Proto-Indo-European ḱew-Every word from Proto-Indo-European ḱewb-