Where does “Vampirfledermaus” come from?

Vampirfledermaus (German) comes from German Fledermaus, from Middle High German vledermūs, from Old High German fledarmūs, from Old High German mūs, from Proto-West Germanic mūs, from Proto-Germanic mūs, from Proto-Indo-European múh₂s — mouse.

Vampirfledermaus (German): vampire bat (Desmodus rotundus)

Definitions

  1. vampire bat (Desmodus rotundus)

Ancestry of “Vampirfledermaus”, step by step

Vampirfledermaus traces back through two separate lines of ancestry.

via German Fledermaus

StepLanguageWordMeaning
1GermanFledermausmicrobat; bat
2Middle High Germanvledermūs—
3Old High Germanfledarmūs—
4Old High Germanmūsmouse
5Proto-West Germanicmūsmouse
6Proto-Germanicmūsmouse
7Proto-Indo-Europeanmúh₂smouse

via German Vampir

StepLanguageWordMeaning
1GermanVampirvampire
2Serbo-Croatianvàmpīrvampire
3Proto-Slavicǫpyrьvampire
Every word from Proto-Indo-European múh₂s →Every word from Proto-Germanic mūs →Every word from Proto-West Germanic mūs →