Where does “errorist” come from?

errorist (English) comes from English error, from Middle English errour, from Old French error, from Latin error, from Latin -or, from Proto-Italic -ōs, from Proto-Indo-European -ōs, from Proto-Indo-European -oss — Creates action nouns or result nouns from verbs;...

errorist (English): One who encourages and propagates error; One who...

Definitions

  1. One who encourages and propagates error; One who...

Ancestry of “errorist”, step by step

errorist traces back through two separate lines of ancestry.

via English error

StepLanguageWordMeaning
1EnglisherrorThe state, quality, or condition of being wrong;...
2Middle Englisherrour
3Old Frencherrorto err; to make an error
4Latinerrorwandering; wavering, uncertainty; error, mistake,...
5Latin-orused to form a third-declension masculine...
6Proto-Italic-ōsCreates masculine action nouns or result nouns...
7Proto-Indo-European-ōsCreates masculine and feminine action nouns or...
8Proto-Indo-European-oss
9Proto-Indo-European-osCreates action nouns or result nouns from verbs;...

via English ist

StepLanguageWordMeaning
1EnglishistA practitioner or supporter of an ism
2English-istAdded to words to form nouns denoting
3Old French-iste
4Latin-ista-ist; one who practises or believes
5Ancient Greek-ιστήςAlternative form of -τής; -ist
6Ancient Greek-τήςAppended to verbs to form agent nouns
7Proto-Hellenic-tās
Every word from Proto-Indo-European -os