Where does “rigoristic” come from?

rigoristic (English) comes from English rigor, from Old French rigor, from Latin rigor, from Latin -or, from Proto-Italic -ōs, from Proto-Indo-European -ōs, from Proto-Indo-European -oss, from Proto-Indo-European -os — Creates action nouns or result nouns from verbs;...

rigoristic (English): Exhibiting rigorism; strict

Definitions

  1. Exhibiting rigorism; strict

Ancestry of “rigoristic”, step by step

rigoristic traces back through two separate lines of ancestry.

via English rigor

StepLanguageWordMeaning
1EnglishrigorUS spelling of rigour; Short for rigor mortis
2Old Frenchrigorharshness; severity; stiffness; rigidity
3Latinrigorstiffness, rigidity; rigor, cold, harshness,...
4Latin-orused to form a third-declension masculine...
5Proto-Italic-ōsCreates masculine action nouns or result nouns...
6Proto-Indo-European-ōsCreates masculine and feminine action nouns or...
7Proto-Indo-European-oss
8Proto-Indo-European-osCreates action nouns or result nouns from verbs;...

via English istic

StepLanguageWordMeaning
1Englishistic

Words derived from “rigoristic

Every word from Proto-Indo-European -osEvery word from Latin -orEvery word from Latin rigor