Where does “otakuism” come from?

otakuism (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.

otakuism (English): The obsessive interest of an otaku, especially an interest in anime or manga

Definitions

  1. The obsessive interest of an otaku, especially an interest in anime or manga

Ancestry of “otakuism”, step by step

otakuism 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 otaku

StepLanguageWordMeaning
1EnglishotakuOne with an obsessive interest in something,...
2Japaneseオタクgeek, nerd; one who is obsessed with something to...
3Japaneseお宅your home; you; geek
4Japanese"indicates that the is honorific"; often used to...
5Middle Chinese
Every word from Proto-Indo-European -mósEvery word from English -ismEvery word from English ism