verb (used without object), in·vig·i·lat·ed, in·vig·i·lat·ing.

to keep watch.
British. to keep watch over students at an examination.

Nearby words

  1. inveterate,
  2. inviable,
  3. invictus,
  4. invidious,
  5. invidiously,
  6. invigilator,
  7. invigorant,
  8. invigorate,
  9. invigorating,
  10. invigoration

Origin of invigilate

1545–55; < Latin invigilātus (past participle of invigilāre to keep watch, stay up late), equivalent to in- in-2 + vigilā- (stem of vigilāre to watch; see vigil) + -tus past participle suffix

Related formsin·vig·i·la·tion, nounin·vig·i·la·tor, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for invigilator


verb (intr)

British to watch examination candidates, esp to prevent cheatingUS word: proctor
archaic to keep watch
Derived Formsinvigilation, nouninvigilator, noun

Word Origin for invigilate

C16: from Latin invigilāre to watch over, from in- ² + vigilāre to keep watch; see vigil

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for invigilator
Online Etymology Dictionary, © 2010 Douglas Harper