Where does “умопомрачительный” come from?

умопомрачительный (Russian) comes from Russian у́м, from Old East Slavic умъ, from Proto-Slavic umъ, from Proto-Indo-European h₂ew-m-, from Proto-Indo-European h₂ew- — to enjoy; to consume; to perceive, see, to be...

умопомрачительный (Russian): prodigious, breathtaking, astounding, terrific

Definitions

  1. prodigious, breathtaking, astounding, terrific

Ancestry of “умопомрачительный”, step by step

умопомрачительный traces back through two separate lines of ancestry.

via Russian у́м

StepLanguageWordMeaning
1Russianу́мmind
2Old East Slavicумъmind, intellect
3Proto-Slavicumъmind
4Proto-Indo-Europeanh₂ew-m-
5Proto-Indo-Europeanh₂ew-to enjoy; to consume; to perceive, see, to be...

via Russian помрачи́ть

StepLanguageWordMeaning
1Russianпомрачи́тьto darken, to cover with gloom
Every word from Proto-Indo-European h₂ew-Every word from Proto-Indo-European h₂ew-m-Every word from Proto-Slavic umъ