To Surprise
To Shock, To Astonish
transitive verb, godan verb
Remember how 驚く is "to be surprised"? This is when you are surprising someone else, doing the surprising, making this word to surprise or to shock.
The reading comes from 驚く. Don't be surprised if you remember the reading of this word because of your past knowledge.
23歳の新入社員は82歳のCEOと結婚して、一緒に仕事をする人全員を驚かした。
The 23-year-old new recruit surprised everyone who works with him by marrying the 82-year-old CEO.