On pg. 260 the Hittite form duwān (parā) 'long ago' should be added to Gk. δ(ϝ)ήν as a reflex of the e-grade*dweh2-m with Stang's Law. See Melchert 2008.
Melchert, H. Craig, 2008. Hittite duwān (parā). In Claire Bowern, Bethwyn Evans, and Luisa Miceli, eds., Morphology and Language History. In Honour of Harold Koch. Philadelphia: John Benjamins, 201–9.