The story
- Proto-Indo-European*h₂ew
- Proto-Indo-European*tó-
- Proto-Hellenic*autós
- Proto-Indo-European*h₂ew
- Ancient Greekαὖ (aû)
- Ancient Greekτόν (tón)
- Ancient Greekαὐτός (autós)
- Ancient Greekαὐτο- (auto-)
- Englishauto-
- Proto-Indo-European*bʰel-
- Proto-Indo-European*bʰlewH-
- Proto-Indo-European*bʰluH-yé-ti?
- Latinfluō
- Latinfluor
- Englishfluor
- Englishfluorite
- Middle Low Germanspar
- Old Englishspærstān
- Middle Englishsparston
- Englishsparstonebf.
- Englishspar
- Englishfluorspar
- Englishfluorescencebf.
- Englishfluoresce
- English todayautofluoresce
From auto- + fluoresce.
Etymology from Wiktionary, CC BY-SA 4.0.