surveillant[-vā′lənt; occas., -vāl′yənt]
Origin of surveillantFrench, present participle of surveiller, to watch over : sur-, over (from Old French; see sur–) + veiller, to watch (from Old French veillier, from Latin vigilāre, from vigil, watchful; see weg- in Indo-European roots).
- One who watches over another; an overseer; a spy; a supervisor.
Part or all of this entry has been imported from the 1913 edition of Websterâ€™s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.