interpress

from The Free On-line Dictionary of Computing (8 July 2008)

Interpress

   Interpreted {FORTH}-like graphics language, possibly the first
   {page description language}, predating {PostScript}.  Both are
   descendants of {JaM}.  Used on {Xerox} printers.

   ["Interpress, The Source Book", Steven Harrington et al, P-H
   1988.]