The story
- Proto-Indo-European*péh₂wr̥
- Proto-Germanic*fōr
- Proto-West Germanic*fuir
- Old Englishfȳr
- Middle Englishfyr
- Englishfire
- Proto-Indo-European*mon-
- Proto-Germanic*mann-
- Proto-West Germanic*mann
- Old Englishmann
- Middle Englishman
- English todayfireman
Etymology from Wiktionary, CC BY-SA 4.0.