*ǵwelH- (imperfective)[1][2]
- to burn
- to shine
- *ǵwélH-e-ti (thematic root present)
- Proto-Indo-Iranian: *ȷ́wálati
- Proto-Indo-Aryan: *ȷ́wálati
- Sanskrit: ज्वलति (jválati, “to burn; to glow”) (see there for further descendants)
- *ǵwl̥H-é-ti ("tudati"-type thematic root present)
- *ǵwl̥H-o-m
- Proto-Germanic: *kulą (“coal”) (see there for further descendants)
- *ǵwolH-o-s
- Proto-Celtic: *goulos (“charcoal, coal”) (< *ǵowlH-o-s via schwebeablaut)
- ^ Guus Kroonen (2013) “*kula- 2”, in Alexander Lubotsky, editor, Etymological Dictionary of Proto-Germanic (Leiden Indo-European Etymological Dictionary Series; 11)[1], Leiden, Boston: Brill, →ISBN, page 309
- ^ Rix, Helmut, editor (2001), Lexikon der indogermanischen Verben [Lexicon of Indo-European Verbs] (in German), 2nd edition, Wiesbaden: Dr. Ludwig Reichert Verlag, →ISBN, pages 170-1