Where does “угрејати” come from?

угрејати (Serbo-Croatian) comes from Serbo-Croatian у, from Proto-Slavic vъ(n), from Proto-Indo-European h₁n̥, from Proto-Indo-European h₁én — in.

угрејати (Serbo-Croatian): to heat, warm

Definitions

  1. to heat, warm

Ancestry of “угрејати”, step by step

угрејати traces back through two separate lines of ancestry.

via Serbo-Croatian у

StepLanguageWordMeaning
1Serbo-Croatianуin, at; to, into; on, in, at, during
2Proto-Slavicvъ(n)in, inside, within; in, into, inside; at
3Proto-Indo-Europeanh₁n̥—
4Proto-Indo-Europeanh₁énin

via Serbo-Croatian грејати

StepLanguageWordMeaning
1Serbo-Croatianгрејатиto heat, warm; to warm oneself
2Proto-Slavicgrětito warm, to heat; to shine
3Proto-Indo-Europeangʷʰer-warm, hot
4Proto-Indo-Europeangʷʰe-gʷʰór-e ~ gʷʰe-gʷʰr-ḗr—
Every word from Proto-Indo-European h₁én →Every word from Proto-Indo-European h₁n̥ →Every word from Proto-Slavic vъ(n) →