Comparative evidence

u̯erh₁, u̯erh₂, u̯erh₃

• Hitt. ur- war-- 'burn', 'be burned' (EDHIL: 923ff.)

• Hitt. warnu- 'kindle', 'set fire' (EDHIL: 923ff.)

References

EDHIL = Kloekhorst, A. 2008. Etymological Dictionary of the Hittite Inherited Lexicon. Brill.