Where does “kääpiörottasiili” come from?

kääpiörottasiili (Finnish) comes from Finnish rottasiili, from Finnish rotta, from Old Swedish rotta, from Middle Low German rotte, from Proto-Germanic rattaz, from Proto-Indo-European Hreh₃d- — to scrape.

Ancestry of “kääpiörottasiili”, step by step

kääpiörottasiili traces back through two separate lines of ancestry.

via Finnish rottasiili

StepLanguageWordMeaning
1Finnishrottasiiligymnure, moonrat
2Finnishrottarat; unemployed person living on welfare
3Old Swedishrotta—
4Middle Low Germanrotte—
5Proto-Germanicrattazrat
6Proto-Indo-EuropeanHreh₃d-to scrape

via Finnish kääpiö

StepLanguageWordMeaning
1Finnishkääpiömidget, dwarf; dwarf star, dwarf
2Finnish-ioForms nouns from verbs or verbal stems; Forms...
3Finnish-oForms result or action nouns from verbs; Forms...
4Proto-Finnic-oForms action/result nouns from verbs
5Proto-Uralic-w—
Every word from Proto-Indo-European Hreh₃d- →Every word from Proto-Germanic rattaz →Every word from Middle Low German rotte →