Verb
To deprive of nerve, force, or strength; to weaken; to enfeeble; as, to unnerve the arm.
Source: Webster's dictionaryI can't imagine,” said Dupre, "a better way to unnerve people than to tell them there's no cause for alarm. Jack McDevitt
Oliver Stone's strategy is to unnerve the actors so as to make them alert and alive. Claire Danes
That should unnerve every other team in the NFC North. Source: Internet
True, no one will be there to laugh at Mr. Biden’s jokes, but it doesn’t matter because the goal is serious: to expose the truth and unnerve Mr. Trump by getting under his skin. Source: Internet