Template:1127

1127 γρηγορεύω gregoreuo [gray-gor-yoo’-o] from 1453 egeiro raise up; v; TDNT-2:338,195; [{See TDNT 206 }] AV-watch 21, wake 1, be vigilant 1; 23

1) to watch

2) metaph. give strict attention to, be cautious, active

2a) to take heed lest through remission and indolence some destructive calamity suddenly overtake one

• From egeiro; to keep awake, i.e. Watch (literally or figuratively) -- be vigilant, wake, (be) watch(-ful).