To turn pale; to lose colour.
"The ancient walls were pale in by thick rows of sharpened stakes to keep the invaders out."
To enclose with pales, or as if with pales; to encircle or encompass; to fence off.
In plain English: To pale means to lose your brightness, color, or importance when compared to something else that is much better.
"She watched her face pale at the thought of being late for work."
Usage: Use "pale" as a verb primarily when describing something turning white or losing its color due to shock, fear, or illness. Do not confuse this action with the noun form referring to a wooden fence post unless specifically discussing fencing construction.
Light in color.
"The moon appeared pale and ghostly against the dark night sky."
The word "pale" comes from the Latin verb meaning "to be gray," which entered Middle English via Old French before replacing an older Germanic term with a similar sound. Its original sense referred to turning pale or fading, reflecting its root in Proto-Indo-European for the color gray.