The Proto-Indo-European word *h₁eus-
Word *h₁eus-
Meaning to burn
Synonyms *dhegʷh-, *swelp-, *dehau-, *ĝwelhₓ-, *h₂ehₓ-

Comments
Alb. ushël, Lith. usnis, Ltv. usna, Lat. ūrō, Gk. heuō/, Gm. eimuria/, Eng. ǣ merge/ember, ON usli, Skr. oṣ ati,