any small, furry-tailed, Old World rodent of the family Gliridae, resembling small squirrels in appearance and habits.
Origin: 1400–50; late ME dormowse, dormoise; etym. obscure; perh. AF deriv. of OF dormir to sleep (see dormant), with final syll. reanalyzed as mouse, but no such AF word is known
dor·mouse (dôr'mous') n. Any of various small, squirrellike Old World rodents of the family Gliridae.
[Middle English, probably alteration (influenced by mous, mouse) of Anglo-Norman dormeus, inclined to sleep, hibernating, from Old French dormir, to sleep; see dormant.]