Where does “Gnosticism” come from?

Gnosticism derives from English Gnostic plus the Ancient Greek suffix -ισμός, from Ancient Greek γνῶσις meaning knowledge, itself from γιγνώσκω meaning to know, ultimately from Proto-Indo-European ǵneh₃-.

Gnosticism (English): A wide variety of Jewish and early Christian...

Definitions

A wide variety of Jewish and early Christian...

Ancestry of “Gnosticism”, step by step

Step	Language	Word	Meaning
1	English	-ism	Used to form nouns of action or process or result...
2	Latin	-ismus	-ism
3	Ancient Greek	-ισμός	Forms abstract nouns
4	Ancient Greek	-μός	Forms abstract nouns
5	Proto-Indo-European	-mós	Creates action/result nouns from verb stems

Every word from Proto-Indo-European -mós →Every word from English -ism →Every word from Ancient Greek -μός →