mousekin

plural mousekins

1. A little mouse.

   “Frisk about, pretty little mousekin,” says grey Grimalkin, purring in the corner, and keeping watch with her green eyes.

   1857–1859, W[illiam] M[akepeace] Thackeray, The Virginians. A Tale of the Last Century, volume (please specify |volume=I or II), London: Bradbury & Evans, […], published 1858–1859, →OCLC

   1 more example

   Dufleur blinked at the stuffed oblong bit of gray cloth that had originally been a mousekin for Fairyfoot. The ears and tail were all gone. The fabric was nubby and snagged, with a couple of bits gone, showing the padding.

   2008, Robin D. Owens, Heart Dance

   Synonyms: mouselet, mouseling, mousy

2. A baby mouse.

   Synonyms: mouselet, mouseling, mousy