a place where one may range at large; confines or bounds.
a person's haunt or resort.
an outlying district or region, as of a town or city.
a piece of land on the edge of a forest, originally land that, after having been included in a royal forest, was restored to private ownership, though still subject, in some respects, to the operation of the forest laws.
1475-85; alteration (simulating Frenchlieu place) of earlier parlewe, parley, paraley purlieu of a forest < Anglo-Frenchpurale(e) a going through, equivalent to pur (< Latinprō for, pro1, confused with per through) + aller (see alley)
But the consequences of congestion are more serious among the foreign-born, heaped up as they are in the slums and purlieus.
British Dictionary definitions for purlieus
(English history) land on the edge of a forest that was once included within the bounds of the royal forest but was later separated although still subject to some of the forest laws, esp regarding hunting
(usually pl) a neighbouring area; outskirts
(often pl) a place one frequents; haunt
(rare) a district or suburb, esp one that is poor or squalid
C15 purlewe, from Anglo-French puralé a going through (influenced also by Old French lieu place), from Old French puraler to traverse, from pur through + aler to go