The story
- Proto-Indo-European*men-
- Proto-Hellenic*mónwos
- Ancient Greekμόνος (mónos)
- Ancient Greekμονο- (mono-)
- Englishmono-
- Englishcyanobacteria
- Proto-Indo-European*h₂el-
- Proto-Indo-European*h₂élisder.?
- Englishcyanobacterial
- English todaymonocyanobacterial
From mono- + cyanobacterial.
Etymology from Wiktionary, CC BY-SA 4.0.