Issue #27895:  Spelling fixes (Contributed by Ville Skyttä).
diff --git a/Lib/test/datetimetester.py b/Lib/test/datetimetester.py
index e21d487..86c9373 100644
--- a/Lib/test/datetimetester.py
+++ b/Lib/test/datetimetester.py
@@ -3958,7 +3958,7 @@
         self.assertRaises(TypeError, lambda: as_date >= as_datetime)
         self.assertRaises(TypeError, lambda: as_datetime >= as_date)
 
-        # Neverthelss, comparison should work with the base-class (date)
+        # Nevertheless, comparison should work with the base-class (date)
         # projection if use of a date method is forced.
         self.assertEqual(as_date.__eq__(as_datetime), True)
         different_day = (as_date.day + 1) % 20 + 1