SDh 1

ḥgb: This likely reflects ḥigāb 'cover', a common Arabic name but attested only once in ANA, in Safaitic ISB 51. 

gʿmʾ: The root gʿm is attested as a tribe name in Hismaic, CH.07-0001-02.11, and once as a personal name in Safaitic, C 1991. The final ʾ could reflect the pattern faʿlāʾ; indeed, the feminine term gamʿāʾ is attested in Arabic but not as a personal name. The name gaʿmūm is attested on Soqotra today. There is a Jabal Jaʿam in the Jinahah region of the Sanʿāʾ governorate. There is a small circle following the ʾ, which might be interpreted as a r or, more likely, a flaw on the stone. 

If the interpretation of this text as comprising a genealogy of names without the word for 'son' is correct, then it would be the first instance of this phenomenon in the Dhofari inscriptions, although it is a well-represented pattern in the Himaitic corpus.