Where does “Haselmaus” come from?

Haselmaus (German) comes from German Hasel, from Middle High German hasel, from Old High German hasal, from Old Norse hasl, from Proto-Germanic *haslaz, from Proto-Celtic koslos, from Proto-Indo-European koselos — hazel.

Haselmaus (German): (common) dormouse (Muscardinus avellanarius)

Definitions

  1. (common) dormouse (Muscardinus avellanarius)

Ancestry of “Haselmaus”, step by step

Haselmaus traces back through two separate lines of ancestry.

via German Hasel

StepLanguageWordMeaning
1GermanHaselhazel; dace
2Middle High Germanhasel—
3Old High Germanhasal—
4Old Norsehaslhazel
5Proto-Germanic*haslazhazel
6Proto-Celtickosloshazel
7Proto-Indo-Europeankoseloshazel

via German maus

StepLanguageWordMeaning
1Germanmausmouse (animal)
2Middle High Germanmūsmouse
3Old High Germanmūsmouse
4Proto-West Germanicmūsmouse
5Proto-Germanicmūsmouse
6Proto-Indo-Europeanmúh₂smouse
Every word from Proto-Indo-European koselos →Every word from Proto-Celtic koslos →Every word from Proto-Germanic *haslaz →