Palmyrean

pḥz - tribal union (DNWSI 905)

St. abs.: pḥz, St. constr.: pḥd.

PWS
*paḫiḏ- - hip, thigh (SED I No. 211, Kogan 2011: 225)
On the semantic shift ‘hip, thigh’ > ‘tribal union’ see Kogan-Militarev 2003 295-296.