To shake involuntarily, typically as a result of anxiety or excitement.

बेताब होना

English Usage: She trembles with fear when she sees a spider.

Hindi Usage: जब वह मकड़ी देखती है, तो वह डर से बेताब होती है.

To tremble or quiver, often in response to excitement or fear.

कापना

English Usage: The thrilling news made her heart palpitate with excitement.

Hindi Usage: रोमांचक समाचार ने उसे उत्साह में कापने दिया।