Emily Dickinson Lexicon

pane (-s), n. [Fr. pan < L. pannus, a piece of cloth.] (webplay: ceiling, glass).

1. Glass; window; thin, flat piece of transparent glass set in a frame to allow light to enter a room; opening in a wall through which the outside world may be viewed.
2. [Fig.] eye.
3. Phr. “On the pane”: at the door; [fig.] near; approaching; close at hand.