Akkadian

dibiru - a calamity (CAD D 134, AHw. 168)

According to CAD, probably a logogram the reading of which is unknown (a Sumerism?). This word is reasonably compared to Hbr. and Arb. by von Soden.

PS
*da/ib(a)r- - pestilence, plague (SED I No. 45)