Arabic

dam­- - blood (BK 1 736, Lane 916)

N. Yem. damm (Behnstedt 1992: 387), (same form in most Arb. dial., cf. Nöldeke 1910: 118).

PS
*dam-, *ˀa-dam- - blood (SED I No. 50)
*ˀadam- with ˀa­- prefixed is reconstructed on the PS level.