PCS

*pulān- - so and so (Kogan 2015: 196)

for a possible connection with *ply ‘to separate, to distinguish’ v. BDB 811

Hebrew
pəlōnī - so and so, someone known (HALOT 934)
Always in the combination pəlōnī ˀalmōnī
Syriac
plān - so and so, such and such (LSyr. 1575, SL 1201)
Arabic
fulān- - such a one, such a man, such a woman (Lane 2444)
Tigre
fəllan - such a one, such a man, such a woman (WTS 652)
a borrowing from Arabic
Mehri
fəlān, fəlāni - such a one, such a man, such a woman (ML 94)
a borrowing from Arabic
Jibbali
fláni - such a one, such a man, such a woman (JL 57)
a borrowing from Arabic