surprise

surprise n

see surprise, v.

1. Emotion of excitement caused by something sudden or unexpected.
2. Confusion; bewilderment; disbelief; astonishment. 
3. Unexpected answer, result, or consequence.
4. Something kept secret as to be revealed unexpectedly, such as the delivery of a gift.
5. Phrase. “Take by surprise”: catch off guard.

surprise [-d] v

AFr < L. 'overtake'.

1. Strike with astonishment; cause one to wonder; do something that causes something unexpected.
2. Confuse; bewilder.
3. Arouse; startle; frighten; come upon unexpectedly.
4. Disappoint; be less than what one hopes for.