Where does “mysterious” come from?

Mysterious comes from Middle French mystérieux, meaning unknown or hidden in nature.

mysterious (English): Of unknown origin; Having unknown qualities;...

Definitions

  1. Of unknown origin; Having unknown qualities;...

Ancestry of “mysterious”, step by step

StepLanguageWordMeaning
1Latinmystēriummystery (secret rite or worship)
2Ancient Greekμυστήριονrevealed secret; mystery, secret; object used in...
3Ancient Greekμύστηςone who has been initiated, initiate
4Ancient GreekμυέωI initiate
5Ancient Greek-έωUsed to form verbs from nouns, adjectives and...
6Proto-Indo-European-éyetiForms causative imperfective verbs from roots;...
7Proto-Indo-European-yetiCreates transitive imperfective verbs from roots

Words derived from “mysterious

Every word from Proto-Indo-European -yetiEvery word from Ancient Greek -έωEvery word from Proto-Indo-European -éyeti