Fix typo
diff --git a/Doc/library/collections.rst b/Doc/library/collections.rst
index c15885e..88d7981 100644
--- a/Doc/library/collections.rst
+++ b/Doc/library/collections.rst
@@ -86,7 +86,7 @@
 
     .. attribute:: parents
 
-        Proerty returning a new :class:`ChainMap` containing all of the maps in
+        Property returning a new :class:`ChainMap` containing all of the maps in
         the current instance except the first one.  This is useful for skipping
         the first map in the search.  Use cases are similar to those for the
         :keyword:`nonlocal` keyword used in :term:`nested scopes <nested