diff --git a/sphinx/ext/autodoc/__init__.py b/sphinx/ext/autodoc/__init__.py
index ed2b750f3..f0908a10b 100644
--- a/sphinx/ext/autodoc/__init__.py
+++ b/sphinx/ext/autodoc/__init__.py
@@ -2507,7 +2507,7 @@ class UninitializedInstanceAttributeMixin(DataDocumenterMixinBase):
         return self.objpath[-1] in annotations
 
     def import_object(self, raiseerror: bool = False) -> bool:
-        """Check the exisitence of uninitialized instance attribute when failed to import
+        """Check the existence of uninitialized instance attribute when failed to import
         the attribute.
         """
         try:
@@ -2728,7 +2728,7 @@ class PropertyDocumenter(DocstringStripSignatureMixin,  # type: ignore[misc]
             return False
 
     def import_object(self, raiseerror: bool = False) -> bool:
-        """Check the exisitence of uninitialized instance attribute when failed to import
+        """Check the existence of uninitialized instance attribute when failed to import
         the attribute.
         """
         ret = super().import_object(raiseerror)
@@ -2801,7 +2801,7 @@ class PropertyDocumenter(DocstringStripSignatureMixin,  # type: ignore[misc]
 
 def autodoc_attrgetter(app: Sphinx, obj: Any, name: str, *defargs: Any) -> Any:
     """Alternative getattr() for types"""
-    for typ, func in app.registry.autodoc_attrgettrs.items():
+    for typ, func in app.registry.autodoc_attrgetters.items():
         if isinstance(obj, typ):
             return func(obj, name, *defargs)
 
diff --git a/sphinx/registry.py b/sphinx/registry.py
index caa8c2daf..da21aefce 100644
--- a/sphinx/registry.py
+++ b/sphinx/registry.py
@@ -55,7 +55,7 @@ EXTENSION_BLACKLIST = {
 class SphinxComponentRegistry:
     def __init__(self) -> None:
         #: special attrgetter for autodoc; class object -> attrgetter
-        self.autodoc_attrgettrs: dict[type, Callable[[Any, str, Any], Any]] = {}
+        self.autodoc_attrgetters: dict[type, Callable[[Any, str, Any], Any]] = {}
 
         #: builders; a dict of builder name -> builder class
         self.builders: dict[str, type[Builder]] = {}
@@ -113,7 +113,7 @@ class SphinxComponentRegistry:
         #: post transforms; list of transforms
         self.post_transforms: list[type[Transform]] = []
 
-        #: source paresrs; file type -> parser class
+        #: source parsers; file type -> parser class
         self.source_parsers: dict[str, type[Parser]] = {}
 
         #: source suffix: suffix -> file type
@@ -132,6 +132,10 @@ class SphinxComponentRegistry:
         # private cache of Docutils Publishers (file type -> publisher object)
         self.publishers: dict[str, Publisher] = {}
 
+    @property
+    def autodoc_attrgettrs(self) -> dict[type, Callable[[Any, str, Any], Any]]:
+        return self.autodoc_attrgetters
+
     def add_builder(self, builder: type[Builder], override: bool = False) -> None:
         logger.debug('[app] adding builder: %r', builder)
         if not hasattr(builder, 'name'):
@@ -377,7 +381,7 @@ class SphinxComponentRegistry:
 
     def add_autodoc_attrgetter(self, typ: type,
                                attrgetter: Callable[[Any, str, Any], Any]) -> None:
-        self.autodoc_attrgettrs[typ] = attrgetter
+        self.autodoc_attrgetters[typ] = attrgetter
 
     def add_css_files(self, filename: str, **attributes: Any) -> None:
         self.css_files.append((filename, attributes))