surveil (verb) - to carefully watch, monitor, or spy on [ser-vayl]
BREAKDOWN: SUR- (over) + VEY- (to see)
surveillance is the careful, systematic observation or monitoring of a person, place, or group to gather information, maintain security, or track activity
surveil and survey have the same roots
“The most dangerous and powerful people in the world do not carry guns or shoot missiles—they write code to surveil and suppress the opposing views.” — Olawale Daniel
