The story
- Proto-Indo-European*plew-
- Proto-Indo-European*pléwmō
- Ancient Greekπλεύμων (pleúmōn)
- Ancient Greekπνέω (pnéō)influ.
- Ancient Greekπνεῦμα (pneûma)influ.
- Ancient Greekπνεύμων (pneúmōn)
- Englishpneumo-
- Ancient Greekκόκκος (kókkos)
- Latincoccum
- New Latincoccu
- Englishcoccus
- Englishpneumococcus
- Proto-Indo-European*h₂el-
- Proto-Indo-European*h₂élisder.?
- English todaypneumococcal
From pneumococcus + -al.
Etymology from Wiktionary, CC BY-SA 4.0.