with devoicing and metathesis
See discussion in Kogan 2012: 231
Cf. damû ‘to suffer from convulsions’ SB (CAD D 80, AHw. 166), dimītu ‘a disease (paralysis, dizziness (?), poisoning of the flesh’ CAD D 143. Though *VwV > VmV is normal for this period, these forms may also go back to the root *dmw/y (see *dwm ‘to be giddy; have pain in the head’, SED I No. 11v).
Probably, a West-Semitic loan in Akkadian, s. Kogan 2012: 247
may go back to PS *dVrdVr-, being reinterpreted as dūru ‘wall’ by popular etymology (Kogan 2003: 128–129).