Burnish

1. n. The effect of burnishing; gloss; brightness; luster.
2. a. To cause to shine; to make smooth and bright; to polish; specifically, to polish by rubbing with something hard and smooth; as, to burnish brass or paper.
3. v. i. To shine forth; to brighten; to become smooth and glossy, as from swelling or filling out; hence, to grow large.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.