What is the meaning of the word "boggle"?

Definitions:

  1. to hesitate when confronted with a problem, or when in doubt or fear copy to clipboard verb
    • In the difficult interview, the candidate boggled often. copy to clipboard
  2. to overcome with amazement copy to clipboard verb
    • This boggles my mind! copy to clipboard
  3. to startle with amazement or fear copy to clipboard verb
    • I boggled at the thought. copy to clipboard

Synonyms: