9 Grammatical Pitfalls
Old English floterian "to flutter, fly, flicker, float to and fro, be tossed by waves," frequentative of flotian "to float" (see float (v.)). Related: Fluttered; fluttering. As a noun from 1640s; meaning "state of excitement" is 1740s.
flutter flut·ter (flŭt'ər)
Abnormally rapid pulsation, especially of the atria or ventricles of the heart.