Where does “sinisterism” come from?

sinisterism (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.

sinisterism (English): A sinister atmosphere

Definitions

  1. A sinister atmosphere

Ancestry of “sinisterism”, step by step

sinisterism 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 sinister

StepLanguageWordMeaning
1EnglishsinisterInauspicious, ominous, unlucky, illegitimate;...
2Middle Englishsinistreunlucky
3Old Frenchsinistraleft
4Latinsinestraleft hand
Every word from Proto-Indo-European -mósEvery word from English -ismEvery word from English ism