Where does “Hellenisticism” come from?

Hellenisticism (English) comes from English Hellenistic, from German hellenistisch, from Ancient Greek Ἑλληνιστής, from Ancient Greek ἑλληνίζω, from Ancient Greek -ίζω, from Proto-Hellenic -íďďō, from Proto-Indo-European -idyéti, from Proto-Indo-European -yéti — he, she.

Ancestry of “Hellenisticism”, step by step

Hellenisticism traces back through two separate lines of ancestry.

via English Hellenistic

StepLanguageWordMeaning
1EnglishHellenisticOf or relating to the period of the Greek...
2GermanhellenistischHellenistic
3Ancient GreekἙλληνιστήςone who uses the Greek language
4Ancient GreekἑλληνίζωI speak or write Greek; I make Greek, Hellenize
5Ancient Greek-ίζωUsed to form verbs from nouns, adjectives and...
6Proto-Hellenic-íďďō
7Proto-Indo-European-idyéti
8Proto-Indo-European-yétiCreates intransitive, often deponent,...
9Proto-Indo-Europeanyé-
10Chichewaiyehe, she

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
Every word from Chichewa iye