Where does “Isisism” come from?

Isisism (English) comes from English ism, from English -ism, from Latin -ismus, from Ancient Greek -ισμός, from Ancient Greek -μός, from Proto-Indo-European -mós — Creates action/result nouns from verb stems.

Isisism (English): An ancient and reconstructionist religion that venerates a pantheon of Egyptian deities

Definitions

  1. An ancient and reconstructionist religion that venerates a pantheon of Egyptian deities

Ancestry of “Isisism”, step by step

Isisism traces back through two separate lines of ancestry.

via English ism

StepLanguageWordMeaning
1EnglishismAn ideology, system of thought, or practice that...
2English-ismUsed to form nouns of action or process or result...
3Latin-ismus-ism
4Ancient Greek-ισμόςForms abstract nouns
5Ancient Greek-μόςForms abstract nouns
6Proto-Indo-European-mósCreates action/result nouns from verb stems

via English ISIS

StepLanguageWordMeaning
1EnglishISISA Salafist group mainly active in Iraq and Syria, where it has proclaimed itself as a (unrecognized) state and later caliphate
2LatinĪsisIsis
3Ancient GreekἾσιςIsis
4EgyptianꜣstIsis
Every word from Proto-Indo-European -mósEvery word from English -ismEvery word from English ism
Isisism — Etymology, Origin & Word History | Etymology Explorer