bog•gleˈbɒg əl(v.; n.)-gled, -gling

1. (v.t.)to overwhelm or bewilder, as with magnitude or complexity:

   boggles the imagination.

2. to bungle; botch.

3. (v.i.)to be overwhelmed.

4. to hesitate because of scruples, fear, etc.

5. (n.)an act of boggling.

Origin of boggle:

1590–1600

bog′gler(n.)

bog•gleˈbɒg əl(n.)

1. Ref: bogle .