Where does “erraticism” come from?

erraticism (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.

erraticism (English): erratic behaviour

Definitions

  1. erratic behaviour

Ancestry of “erraticism”, step by step

erraticism 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 erratic

StepLanguageWordMeaning
1Englisherraticunsteady, random; prone to unexpected changes;...
2Latinerrāticuswandering, roving
3Latin-aticusUsed to form adjectives indicating a relation to...
4Latin-ātused
5Proto-Italic-ātos
6Proto-Indo-European-éh₂tosForms adjectives from nouns, indicating the possession of a thing or a quality
Every word from Proto-Indo-European -mós
erraticism — Etymology, Origin & Word History | Etymology Explorer