Unnerve – Make (someone) lose courage or confidence

(Pronounced un-nerve)

To remember the definition of the word unnerve, use the following mnemonic:

The fact that he only wore underwear got on everyone's nerves (unnerve). As a result, they lost confidence in him as a leader.

Examples of unnerve in a sentence

The spiders in the attic really unnerve me, I don't want to go up there.

In an effort to unnerve the rival team, the New Zealand All Blacks performed their traditional Haka. 

Her angry expression didn't unnerve me.