* FIND ( bstring -- cfa|bstring -1|0|1 )

looks into the current search-order and tries to find
the name string as the name of a word. Returns its
execution-token or the original-bstring if not found,
along with a flag-like value that is zero if nothing
could be found. Otherwise it will be 1 if the word had
been immediate, -1 otherwise.

core ordinary primitive