The story
- Ancient Greekβακτηρία (baktēría)
- Ancient Greekβακτήριον (baktḗrion)
- New Latinbactērium
- Englishbacterio-
- Proto-Indo-European*leǵ-
- Proto-Indo-European*lóǵos
- Proto-Hellenic*lógos
- Ancient Greekλόγος (lógos)
- Proto-Indo-European*h₂el-
- Proto-Indo-European*h₂élisder.?
- Englishbacteriological
- English todaybacteriologically
From bacteriological + -ly.
Etymology from Wiktionary, CC BY-SA 4.0.