cforth is a portable, C-coded FigForth ForthInterpreter written by Allan Pratt.

From the documentation:

This is a ForthInterpreter, written entirely in portable C and Forth. It requires nothing more than a decent C compiler to use. It is not exactly fast or efficient, but it is a true ForthInterpreter.

http://archiv.leo.org/pub/comp/usenet/comp.sources.unix/cforth/

Is this the same thing as the "cforth" at https://sourceforge.net/projects/cforth/ ?