PS

*napš- - soul (as receptacle of vital energy) (Fronzaroli 1964: 21–23; Kogan 2015: 415)

PWS
*napš- - self (Kogan 2015:94)

Throughout WS (with the exception of Ugr.) the reflexes of PS *napš- ‘souľ with pronominal suffixes are regularly used as reflexive pronouns

Akkadian
napištu - life, soul (CAD N₁ 296, AHw. 738)

cf. napištu ‘throat’

Ebla
nu-pù-uš-tum - Sum. ZI (VE 1050, 1315; Krebernik 1983: 37)
Ugaritic
npš - Appetit, Begehren; Seele; Lebewesen, Mensch (appetit, desire; soul; living thing; human) (WUS 211)
One wonders whether the meaning “self” is actually attested in the extant Ugaritic sources
Samalian
nbš - soul (DNWSI 744)
Old Aramaic
nbš - soul (DNWSI 744)
Geez
nafs - soul, spirit, breath, life, etc. (CDG 389)