# flittermouse

> English word · Noun

## Definitions
1. A bat (a flying mammal).

## Etymology
From flitter + mouse (compare flickermouse, flindermouse), after Middle Dutch fleddermuys, vledermuys, vlermuys (Modern Dutch vleermuis), from vledderen, vlederen (“to flutter, float, hover”) + muys (“mouse”). Cognate with West Frisian flearmûs (“bat”), Middle Low German vledermūs (“bat”), German Fledermaus (“bat”), Swedish fladdermus (“bat”) and flädermus (“bat”). More at flitter, flutter, flatter, mouse.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/flittermouse