Definition of mousefall in English:

mousefall

Pronunciation /ˈmaʊsfɔːl/

noun

dialect Scottish
  • A mousetrap.

Origin

Old English; earliest use found in Corpus Glossary. Cognate with or formed similarly to West Frisian mūzefalle, Middle Dutch musevalle, Dutch muizenval, Old Saxon mūsfalla (Middle Low German mūsevalle), Old High German mūsfalla (Middle High German mūsvalle, German Mausefalle, Mäusefalle), Swedish musfälla, Danish musefaelde from the Germanic base of mouse + the Germanic base of fall.