Akkadian

ubānu - finger (CAD U–W 3, AHw. 1398)

<*hubān- or *ˀubhān-? The relation to *bVhVn- is less evident than in case of Hbr. bōhän ‘thumb, big toe’ and Ebl. ba-ˀà-núm

PS
*bVhVn- - thumb (SED I No. 34; Kogan 2011: 224)