Akkadian

paṭāru - to untie, to release (CAD P 286, AHw. 849)

Derived words: napṭartu ‘desertion’ (CAD N₁ 324, AHw. 742); napṭartu (napṭaštu) (a part of a lock) (CAD N₁ 324, AHw. 742); napṭaru ‘visitor’ (CAD N₁ 324, AHw. 742); napṭarūtu (mng. uncert.) (CAD N₁ 326); napṭiru (napṭaru) ‘substitute, replacement’ (CAD N₁ 326); paṭirtu ‘unyoked team’ (CAD P 303); pāṭiru ‘off-duty soldier’ (CAD P 304, AHw. 848); paṭīru (or pāṭiru) ‘(a table)’ (CAD P 303, AHw. 851); paṭru ‘released’ (CAD P 305, AHw. 851); puṭāru (a type of bull) (CAD P 555, AHw. 885); puṭṭuru ‘released’ (CAD P 555, AHw. 885); puṭṭuru ‘visitor’ (SAD I); puṭur īni (a bird) (CAD P 555); puṭūru ‘ransom’ (CDA 280); tapṭīrtu ‘release’ (CAD T 196, AHw. 1323); tapṭīru ‘castrated (bull)’ (CAD T 196, AHw. 1323).

PS
*pṭr - to split, to cleave (EDA I)