Noah Webster's New International Dictionary of the English Language

1. (v. t.) To deprive of peace, rest, or tranquility; to make uneasy or restless; to disturb.

2. (a.) Deprived of quiet; impatient; restless; uneasy.

3. (n.) Want of quiet; want of tranquility in body or mind; uneasiness; restlessness; disturbance; anxiety.