rigor

Meanings

1. 1
   noun

   excessive sternness

   The rigor of the rule left no room for mercy.

2. 2
   noun

   something hard to endure

   The rigor of the rule left no room for mercy.

3. 3
   noun

   the quality of being valid and rigorous

   The rigor of the rule left no room for mercy.

4. 4
   noun

   US spelling of rigour.

   The rigor of the rule left no room for mercy.

From Old French, from Latin rigor (“stiffness, rigidity, rigor, cold, harshness”), from rigere (“to be rigid”).

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