Where does “Idoist” come from?

Idoist (English) comes from English Ido, from Ido Ido, from Esperanto ido, from Esperanto -ido, from Latin -ides, from Ancient Greek -ίδης, from Ancient Greek -ής, from Proto-Indo-European -ēs — Creates action nouns or result nouns from verbs;...

Ancestry of “Idoist”, step by step

StepLanguageWordMeaning
1EnglishIdoA constructed language; a reform of Esperanto and Idiom Neutral
2IdoIdoIdo
3Esperantoidochild born to a parent; offspring; young of an animal
4Esperanto-idooffspring; immature animal
5Latin-idesson of
6Ancient Greek-ίδηςson of
7Ancient Greek-ήςadjective suffix
8Proto-Indo-European-ēsPrimarily forms adjectival bahuvrīhi compounds
9Proto-Indo-European-ess
10Proto-Indo-European-osCreates action nouns or result nouns from verbs;...
Every word from Proto-Indo-European -os