Akkadian

pasāsu - to erase, to cancel (CAD P 218, AHw. 838)

Derived words: passu ‘flattened’ (CAD P 224, AHw. 839); pasūsātu ‘obliteration’ (CAD P 225, AHw 839); pissatu (piššatu) ‘erasure’ (CAD P 426); pussusu ‘erased, cancelled’ (CAD P 537, AHw. 883).
Direct parallels to the Akkadian verb are attested only in JBA pss ‘to destroy, to break’ and Mnd. pss ‘to destroy, to break, to cut asunder; to vanish, to disappear’. The dialectal distribution of the Aramaic lexemes makes it likely that they are due to Akkadian influence.