Where does “microseism” come from?

microseism (English) comes from English seism, from French séisme, from Ancient Greek σεισμός, from Ancient Greek σείω, from Proto-Hellenic *tséihō.

microseism (English): A faint earth tremor caused by natural phenomena,...

Definitions

  1. A faint earth tremor caused by natural phenomena,...

Ancestry of “microseism”, step by step

microseism traces back through two separate lines of ancestry.

via English seism

StepLanguageWordMeaning
1EnglishseismA shaking of the Earth's surface; an earthquake...
2Frenchséismeearthquake
3Ancient Greekσεισμόςshaking, shock; earthquake; storm
4Ancient GreekσείωI shake
5Proto-Hellenic*tséihō

via French microséisme

StepLanguageWordMeaning
1Frenchmicroséismemicroseism
2Frenchmicro-micro
Every word from Proto-Hellenic *tséihō