TgJ Zec14:8 :פַלגהוֹן לְיַמָא מַדנָחָאָה וֻפַלגְהוֹן לְיַמָא מַערְבָאָה‏ : half (of the water shall flow) to the eastern sea and half of it to the western sea
See the entire entry for ple/aḡ, pe/algā n.m. half; waist