Emily Dickinson Lexicon

HARP, v.i.

1. To play on the harp. I heard the voice of harpers, harping with their harps. Rev. xiv.
2. To dwell on, in speaking or writing; to continue sounding. He seems Proud and disdainful, harping on what I am – / Not what he knew I was. Shak.
3. To touch as a passion; to affect. Shak.