Puhvel, Jaan (2007), Hittite Etymological Dictionary, vol.
7, Berlin-New York: Mouton de Gruyter. The seventh volume of this
reference work contains the Hittite words beginning with N (pp.
1-135), Corrections and Additions to volumes 1, 2, 3, 4, 5 and 5
(pp. 137-156) and "An eye on the second half", from penna to
umma (p. 157).