Where does “rigor” come from?

rigor (Latin) comes from Latin rigere — second-person singular present passive...

rigor (Latin): stiffness, rigidity; rigor, cold, harshness,...

Definitions

  1. stiffness, rigidity; rigor, cold, harshness,...

Ancestry of “rigor”, step by step

rigor traces back through two separate lines of ancestry.

via Latin rigere

StepLanguageWordMeaning
1Latinrigeresecond-person singular present passive...

via Latin rigeō

StepLanguageWordMeaning
1Latinrigeōto be stiff or numb; stiffen

Words derived from “rigor

Every word from Latin rigere