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diff --git a/adoc/p_rot.adoc b/adoc/p_rot.adoc
index 5764e0e..649a406 100644
--- a/adoc/p_rot.adoc
+++ b/adoc/p_rot.adoc
@@ -1,9 +1,15 @@
+// stack.asm:	WORD p_rot, 'ROT',fasm
+
 anchor:p_rot[]
 
-Word: ROT
-----------
+=== Word: ROT
+
+....
+Data stack: ( v1 v2 v3 -- v2 v3 v1 )
+....
 
-----
-stack.asm:	WORD p_rot, 'ROT',fasm
-----
+"ROT" is a function word that "rotates" the top three data stack cells
+such that the third becomes the first while the second becomes third
+and the first becomes the second.
 
+See also <<p_roll,ROLL>>.