PS

*hadad- - thunder (Fronzaroli 1965a: 140; DRS 373; Kogan 2011: 194)

Proto-MSA
*hdd - to thunder; to threaten (Naumkin et al. 2016b:77-78)

Akkadian
adad - name of the Storm-god (Schwemer 2001: 34–58)
Var. addu
Ugaritic
hd, hdd - name of the Storm-god (DUL 334)
Arabic
hāddat- - thunder (Lane 2883)
Tigre
hadud, hədud - thunder (WTS 26)
Tigrinya
hadädä - to thunder (TED 50)
Mehri
həd - thunder (ML 152)
Jibbali
hid - thunder (JL 94)