The story
- Englishmicrobe
- Proto-Indo-European*kh₂eyd-
- Proto-Indo-European*kh₂éydeti
- Proto-Italic*kaidō
- Latincaedō
- Englishmicrobicide
- Proto-Indo-European*h₂el-
- Proto-Indo-European*h₂élisder.?
- English todaymicrobicidal
From microbicide + -al.
Etymology from Wiktionary, CC BY-SA 4.0.