Where does “rigourist” come from?

rigourist (English) comes from English rigour, from Middle English rigour, from Old French rigor, from Latin rigor, 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;...

rigourist (English): Alternative form of rigorist

Definitions

  1. Alternative form of rigorist

Ancestry of “rigourist”, step by step

rigourist traces back through two separate lines of ancestry.

via English rigour

StepLanguageWordMeaning
1EnglishrigourSeverity or strictness; Harshness, as of climate;...
2Middle Englishrigour
3Old Frenchrigorharshness; severity; stiffness; rigidity
4Latinrigorstiffness, rigidity; rigor, cold, harshness,...
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 -osEvery word from Latin -orEvery word from Latin rigor