The story
- Proto-Indo-European*ḱwey-
- Proto-Hellenic*kúwanos
- Ancient Greekκῠ́ᾰνος (kŭ́ănos)
- Ancient Greekκῠᾰ́νεος (kŭắneos)
- Englishcyano-
- Ancient Greekβακτηρία (baktēría)
- Ancient Greekβακτήριον (baktḗrion)
- New Latinbactērium
- Englishbacteri(um)
- Proto-Indo-European*kh₂eyd-
- Proto-Indo-European*kh₂éydeti
- Proto-Italic*kaidō
- Latincaedō
- Proto-Indo-European*h₂el-
- Proto-Indo-European*h₂élisder.?
- Englishbactericidal
- English todaycyanobactericidal
From cyano- + bactericidal.
Etymology from Wiktionary, CC BY-SA 4.0.