PS

*pḫr - to assemble (Kogan 2015:28)

Aramaic lexemes with the root pḥr meaning ‘assembly’ are usually thought to be Akkadisms (Kaufman 1974:83).

Akkadian
paḫāru - to assemble, to congregate; to gather, collect (CAD P 23, AHw. 810)
Ugaritic
pḫr - assembly (DUL 669, Watson 2007:99)
Ugaritic
pḫyr - whole, totality (DUL 669)
Phoenician
mpḥrt - assembly (DNWSI 673)
Hapax legomena
Palmyrean
pḥr - assembly, banquet (DNWSI 907)
An Akkadism (EDA I 130)
Hatran
pḥr - assembly, banquet (DNWSI 907)
An Akkadism (EDA I 130)
Syriac
puḥrā - banquet (LSyr. 563, SL 1161)
An Akkadism (EDA I 130)
Mandaic
puhra - feast, banquet (MD 367)
An Akkadism (EDA I 130)
Arabic
fḫr - to boast, to glory (Lane 2349)
The derivation is not evident
Arabic
faḫūr- - a she-camel great in the udder, but having little milk; a palm-tree great in the trunk, thick in the branches; a house great in the yard and long therein (Lane 2349)
The derivation is not evident
Qatabanian
f-t-ḫr - to enter into partnership, to associate with (LIQ 129)
Geez
faḫara - to engage, to betroth, to espouse (CDG 158)
Mehri
fáḫrəh - together (ML 110)
Jibbali
fáḫrəh - together (JL 67)
Soqotri
fáḥre - all (LS 335; CSOL I 533; CSOL II 454)

fáḥre tóˀo kɔn ‘all, in the entirety, all and every’:

wa-ˁážeʰ kɔn mes gad wa-mes ŝérhon wa-mes ídi fáḥre tóˀo kɔn mabľúľ ‘As for the woman, all of her body, her feet, her hands, all of it became moist’ (CSOL II 4:58)