The story
- Proto-Indo-European*bʰel-
- Proto-Italic*flagmā
- Latinflammula
- Old Frenchflamble
- Old Frenchflambe
- Old Frenchflamber
- Middle Englishflawmen
- Englishflame
- Proto-Indo-European*bʰeyd-
- Proto-Indo-European*bʰéydt
- Proto-Germanic*bītaną
- Proto-Germanic*baitijaną
- Old Norsebeita
- Middle Englishbayte
- Englishbait
- English todayflamebait
From flame + -bait (manipulation to elicit a particular response).
Etymology from Wiktionary, CC BY-SA 4.0.