PS

*pal(a)g- - stream (Fronzaroli 1968: 273, 288, 299; Kogan 2011: 191)

PS
*plg - to cleave, to split (EDA I 254)

Akkadian
palgu - stream (CAD P 62, AHw. 815)
Ugaritic
plg - stream, canal (DUL 671)
Hebrew
päläg - subdivision of a tribe; water-course; artificial water channel, canal (HALOT 929)
Official Aramaic
plg - canal (DNWSI 913)
Arabic
falǯ-, falaǯ- - stream (Lane 2437)
Geez
falag - river (CDG 159)
Tigre
fäläg - ravine (WTS 653)
Mehri
fəlēg - river (ML 93)
Jibbali
félέg - river (JL 57)