Where does “aarniopuu” come from?

aarniopuu (Finnish) comes from Finnish aarnio, from Finnish Aarni, from Finnish Aarne, from Swedish Arne, from Old Norse Árni, from Old Norse ǫrn, from Proto-Germanic arô, from Proto-Indo-European er- — eagle, bird; loose, light, rare, sparse; to fail,...

Ancestry of “aarniopuu”, step by step

aarniopuu traces back through two separate lines of ancestry.

via Finnish aarnio

StepLanguageWordMeaning
1FinnishaarnioSynonym of aarnihauta; Synonym of aarreaitta;...
2FinnishAarnitreasure
3FinnishAarne
4SwedishArne
5Old NorseÁrni
6Old Norseǫrneagle
7Proto-Germanicarôeagle
8Proto-Indo-Europeaner-eagle, bird; loose, light, rare, sparse; to fail,...

via Finnish puu

StepLanguageWordMeaning
1Finnishpuutree; wood
2Proto-Finnicpuutree
3Proto-Uralicpuwetree, wood
Every word from Proto-Indo-European er-Every word from Proto-Germanic arôEvery word from Old Norse ǫrn