...
the CFA is a synonym for an execution token, ie. the address of
the code field of a word. A forth colon word is composed of a
sequence of execution tokens. Each forth word with a header is build
of a =>">NAME"-field, =>">LINK"-field, the Code-field and followed by
the =>">BODY".
reference: CFA in doc-pfe.cdoc:0044, export never CFA