Words

Akkadian
patru - sword, dagger (CAD P 279, AHw. 848)
No etymology can be suggested.
Akkadian
pattarānu - (an object) (CAD P 284, AHw. 848)
Or battarānu. No etymology can be suggested.
Akkadian
pattu - canal, branch canal, feeder canal (CAD P 284, AHw. 848)
Most probably from Sum. PA₅(R) ‘irrigation canaľ (SLOB No. 544).
Akkadian
pattû - bucket (CAD P 285, AHw. 849)
Probably from Sum. ba-an-DU₅ ‘seeding basket (of a plow)’ (PSD B 15).
Akkadian
paˀtu - (a piece ?) (EDA I 77)
Or baˀtu. Four attestations in damaged contexts, always followed by {NINDA} “bread”, see Pentiuc 2001, 35. No definitive etymology can be suggested.
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).

Akkadian
pāṭu - edge, border (CAD P 305, AHw. 849)
Var.: pattu. No etymology can be suggested.
Akkadian
paˀû - a bird (CAD P 310, AHw. 852)
No definitive etymology can be suggested. Perhaps to be compared with JBA pḥyˀ “a bird” (DJBA 895).
Akkadian
paˀurru - (mng. uncert.) (SAD 1 80)
Hapax. In an inventory list of jewellery belonging to the goddess Nanaya: “1 gold necklace with paˀurru” (Beaulieu 2003, 195). No etymology can be suggested.
Akkadian
pawiru, pawuru - lord (CAD P 310, AHw. 852)
From Egyptian pɜ wr “der Grosse” (Wb. I 328).