QUIT QUERY R/O
QUIT ( -- )   no-return
ansi .6.1.2050 <CORE>
this will throw and lead back to the outer-interpreter. traditionally, the outer-interpreter is called QUIT in forth itself where the first part of the QUIT-word had been to clean the stacks (and some other variables) and then turn to an endless loop containing QUERY and EVALUATE (otherwise known as INTERPRET ) - in pfe the primary cleanup is done through a longjmp due to the implicit THROW .

reference: p4_quit in ../src/core.c:1558, export CO QUIT