Where does “kultahiiri” come from?

kultahiiri (Finnish) comes from Finnish kulta, from Proto-Finnic kulta, from Proto-Germanic gulþą, from Proto-Indo-European ǵʰl̥tóm, from Proto-Indo-European ǵʰelh₃- — to flourish; green, yellow.

Ancestry of “kultahiiri”, step by step

kultahiiri traces back through two separate lines of ancestry.

via Finnish kulta

StepLanguageWordMeaning
1Finnishkultagold; gold medal; darling, dear, baby
2Proto-Finnickultagold
3Proto-Germanicgulþągold
4Proto-Indo-Europeanǵʰl̥tómgold
5Proto-Indo-Europeanǵʰelh₃-to flourish; green, yellow

via Finnish hiiri

StepLanguageWordMeaning
1FinnishhiiriA mouse, used rather indiscriminately for a...
2Proto-Finnichiirimouse
3Proto-Uralicšiŋeremouse
Every word from Proto-Indo-European ǵʰelh₃-Every word from Proto-Indo-European ǵʰl̥tómEvery word from Proto-Germanic gulþą