The story
- Proto-Indo-European*plew-
- Proto-Indo-European*plewk-
- Proto-Indo-European*pléwketi
- Proto-Germanic*fleuganądeverb.
- Proto-Germanic*fleugǭ
- Proto-West Germanic*fleugā
- Old Englishflēoge
- Middle Englishflye
- Englishfly
- Englishswat
- Englishswatter
- English todayflyswatter
Etymology from Wiktionary, CC BY-SA 4.0.