The word "nervous" describes a state of being anxious, worried, or apprehensive. When someone is nervous, they may feel uneasy or have butterflies in their stomach, especially in situations that are new, uncertain, or potentially stressful. This feeling can manifest in physical symptoms such as sweating, increased heart rate, or trembling.
The word "nervous" originates from the Latin word "nervosus," which means "sinewy or strong" (from "nervus," meaning "nerve"). Over time, the meaning evolved to include feelings associated with the nervous system, particularly anxiety and restlessness.