surpriser

transitive verb surprised, surprising

1. to come upon suddenly or unexpectedly; take unawares
2. to attack or capture suddenly and without warning
3. 1. to cause to feel wonder or astonishment by being unexpected
   2. to present (someone) unexpectedly with a gift, etc.
4. 1. to cause by some unexpected action to do or say something unintended: to surprise someone into an admission
   2. to bring out or elicit by such means: to surprise an admission from someone

noun

1. Now Rare the act of surprising or taking unawares
2. an unexpected seizure or attack
3. the state of being surprised; feeling aroused by something unusual or unexpected; wonder or astonishment
4. something that surprises because unexpected, unusual, etc.