Where does “O'Neillism” come from?

O'Neillism (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.

O'Neillism (English): The policies of Terence O'Neill (1914–1990), fourth Prime Minister of Northern Ireland

Definitions

  1. The policies of Terence O'Neill (1914–1990), fourth Prime Minister of Northern Ireland

Ancestry of “O'Neillism”, step by step

O'Neillism 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 O'Neill

StepLanguageWordMeaning
1EnglishO'Neill
2IrishNiall
3Old IrishNíall
Every word from Proto-Indo-European -mósEvery word from English -ismEvery word from English ism