The story
- Ancient GreekΜάγνης (Mágnēs)
- Ancient GreekΜαγνησία (Magnēsía)
- LatinMagnēsia
- Latinmagnēsius
- Medieval Latinmagnēsia
- Italianmanganese
- Frenchmanganèse
- Englishmangan(ese)
- English todaymanganate
From mangan(ese) + -ate.
Etymology from Wiktionary, CC BY-SA 4.0.