palpitate
verb (used without object)
to pulsate with unusual rapidity from exertion, emotion, disease, etc.; flutter.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
With a quiet step and an unpalpitating heart, Agnes opened the parlor door, and found herself alone with—Mr. Harrington!
From Lewie Or, The Bended Twig by Sarah H. (Sarah Hopkins) Bradford