Danish flagermus

← Danish flagre (mention)

← Danish mus (mention)

← German Fledermaus (cognate)

← English flounder (cognate)

← Proto-Germanic *fifaldǭ (cognate)

← Middle Low German vledermus (derived)

← Norwegian Bokmål flaggermus (cognate)

← Swedish fladdra (cognate)

← Swedish fladdermus (cognate)

→ Low German Fleddermuus (cognate)