palpitate
verb (used without object)
to pulsate with unusual rapidity from exertion, emotion, disease, etc.; flutter.
Used to express actions, events, or states that have not yet occurred but are expected to happen.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
I will talk more dispassionately;—but my heart will palpitate at the thought of meeting the lovely source of its joy, and the ultimatum of all its wishes!
From The Politician Out-Witted by Montrose Jonas Moses