Thayer's Greek Lexicon

 1. to put to flight by terrifying (to scare away)
  1) to put to flight, to flee
  2) to fear, be afraid
1b1. to be struck with fear, to be seized with alarm
1b  1) of those startled by strange sights or occurrences
1b  2) of those struck with amazement
1b2. to fear, be afraid of one
1b3. to fear (i.e. hesitate) to do something (for fear of harm)
  3) to reverence, venerate, to treat with deference or
reverential obedience

For Synonyms see entry G5841