Carbonize

1. v. t. To impregnate or combine with carbon, as in making steel by cementation.
2. v. t. To convert (an animal or vegetable substance) into a residue of carbon by the action of fire or some corrosive agent; to char.

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.