Where does “imbecilism” come from?

imbecilism (English) comes from English imbecile, from Middle French imbécile, from Latin imbēcillus, from Latin Bacillus, from Latin -illus, from Latin -lus, from Proto-Italic -elos, from Proto-Indo-European -e-lós — Forms agent nouns from verbal roots.

imbecilism (English): imbecility

Definitions

  1. imbecility

Ancestry of “imbecilism”, step by step

imbecilism traces back through two separate lines of ancestry.

via English imbecile

StepLanguageWordMeaning
1EnglishimbecileA person with limited mental capacity who can...
2Middle Frenchimbécile
3Latinimbēcillusweak, feeble
4LatinBacillus
5Latin-illusUsed to form adjectives from nouns
6Latin-lusAlternative form of -ulus; diminutive suffix
7Proto-Italic-elosForms desubstantival and deadjectival diminutive nouns
8Proto-Indo-European-e-lós
9Proto-Indo-European-lósForms agent nouns from verbal roots

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 Proto-Indo-European -lós
imbecilism — Etymology, Origin & Word History | Etymology Explorer