He seemed to find his way without his eyes; For out o' door he went
without their helps, And, to the last, bended their light on me.
Shak.
5. The medium through which light is admitted, as a window, or window
pane; a skylight; in architecture, one of the compartments of a window
made by a mullion or mullions.
There were windows in three rows, and light was against light in
three ranks.