جَالٌّ

Going forth, or emigrating, from a country, or town, to another country, or town; (Msb;) [as also جَالٍ; (see article جلو;)] and so جَالَّةٌ, (S, Msb, K,) its plural, (Msb,) applied to a people, or company of men; (S, Msb, K;) originally applied to the Jews who were expelled from El-Hijáz; as also جَالِيَةٌ. (Msb.)

Hence, ↓ جَالَّةٌ, as a subst., meaning The poll-tax; (Msb;) as also جَالِيَةٌ, (S and Msb in art جلو.) You say, اُسْتُعْمِلَ ِفُلَانٌ عَلَى الجَالَّة [Such a one was employed as collector of the poll-tax]; like as you say, على الجَالِيَةِ. (S, Msb.)

-A2- جَالَّةٌ as a feminine epithet used as a subst.: see جَلَّالَةٌ.