Where does “Parnellism” come from?

Parnellism (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.

Parnellism (English): The policy or principles of the Parnellites

Definitions

  1. The policy or principles of the Parnellites

Ancestry of “Parnellism”, step by step

Parnellism 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 Parnell

StepLanguageWordMeaning
1EnglishParnellsee Etymology
2EnglishPetronellarare in English after Middle Ages
3LatinPetronella
4LatinPetroniusof or pertaining to the gens Petronia
5Proto-Italic*kʷetru-four, quadri
Every word from Proto-Indo-European -mósEvery word from English -ismEvery word from English ism