Akkadian

parāṣu - to break an oath, to transgress, violate a trust (CAD P 178, AHw. 832)

Alternatively, could be traced back to *prṣ ‘to break, to cut’ or *prṯ̣ ‘to separate vertebrae from one another’. Derived words: napraṣu (part of a spindle; a tool, perhaps a chisel) (CAD N₁ 313, AHw. 740); parrāṣāyu ‘lying, mendacious, criminal (?)’ (SAD I); parrāṣu ‘lier’ (CAD P 189, AHw. 834); parriṣu ‘false, mendacious, criminaľ (CAD P 191, AHw. 834); pirṣātu ‘lies, deceit, trickery’ (CAD P 413).

PS
*prṣ̂ - to cut, to pierce, to incise (EDA I 307)