+=== Word: PICK
+
+....
+Data stack: ( vu...v1 v0 u -- vu...v1 v0 vu )
+....
+
+"PICK" is a function word that pushes the u:th data stack cell down
+from top onto the data stack. 0 indicates the top cell making it the
+same as <<p_dup,DUP>>, and 1 indicates the second top cell making it
+the same as <<p_over,OVER>>.