BOGGLE

[verb] - to (cause to) have difficulty imagining or understanding somethingWhat she said made the imagination boggle. [I]The mind boggles at the amount of money they spend on food. [I]It rather boggles the mind, doesn't it? [T]See also mind-boggling at mind (THOUGHTS).To boggle is also not to know how to deal with something.He boggled at the suggestion.