means A restriction or boundary that defines how far something can go, or a shortcoming that prevents you from doing more.

from From Latin 'limitatio,' the act of fixing a boundary, built on 'limes' — the word for a border, path, or frontier line. To the Romans, a 'limes' was literally the edge of cultivated land or the fortified boundary of the empire, the line past which Rome stopped and the wild began. The word reached English in the late 1300s through Old French, carrying that ancient sense of a drawn line you weren't meant to cross.