diff --git a/pypdf/_page.py b/pypdf/_page.py
index 1c77ce3ba..f7d33615e 100644
--- a/pypdf/_page.py
+++ b/pypdf/_page.py
@@ -69,7 +69,7 @@
 from .constants import AnnotationDictionaryAttributes as ADA
 from .constants import ImageAttributes as IA
 from .constants import PageAttributes as PG
-from .constants import Ressources as RES
+from .constants import Resources as RES
 from .errors import PageSizeNotDefinedError, PdfReadError
 from .filters import _xobj_to_image
 from .generic import (
diff --git a/pypdf/_writer.py b/pypdf/_writer.py
index 4dbcb5274..c7569e31e 100644
--- a/pypdf/_writer.py
+++ b/pypdf/_writer.py
@@ -2675,10 +2675,15 @@ def _get_filtered_outline(
                     v = NullObject()
                 o[NameObject("/Page")] = v
                 if "/First" in node:
-                    o.childs = self._get_filtered_outline(node["/First"], pages, reader)
+                    o._filtered_children = self._get_filtered_outline(
+                        node["/First"], pages, reader
+                    )
                 else:
-                    o.childs = []
-                if not isinstance(o["/Page"], NullObject) or len(o.childs) > 0:
+                    o._filtered_children = []
+                if (
+                    not isinstance(o["/Page"], NullObject)
+                    or len(o._filtered_children) > 0
+                ):
                     new_outline.append(o)
                 node = node.get("/Next", None)
         return new_outline
@@ -2716,7 +2721,7 @@ def _insert_filtered_outline(
             else:
                 np = self._clone_outline(dest)
                 cast(TreeObject, parent.get_object()).insert_child(np, before, self)
-            self._insert_filtered_outline(dest.childs, np, None)
+            self._insert_filtered_outline(dest._filtered_children, np, None)
 
     def close(self) -> None:
         """To match the functions from Merger."""
diff --git a/pypdf/constants.py b/pypdf/constants.py
index 5f06a0b2f..b680aa534 100644
--- a/pypdf/constants.py
+++ b/pypdf/constants.py
@@ -11,6 +11,8 @@
 from enum import IntFlag, auto
 from typing import Dict, Tuple
 
+from ._utils import deprecate_with_replacement
+
 
 class Core:
     """Keywords that don't quite belong anywhere else."""
@@ -127,8 +129,11 @@ def all(cls) -> "UserAccessPermissions":
         return cls((2**32 - 1) - cls.R1 - cls.R2)
 
 
-class Ressources:
-    """TABLE 3.30 Entries in a resource dictionary."""
+class Resources:
+    """
+    TABLE 3.30 Entries in a resource dictionary.
+    used to be Ressources
+    """
 
     EXT_G_STATE = "/ExtGState"  # dictionary, optional
     COLOR_SPACE = "/ColorSpace"  # dictionary, optional
@@ -140,6 +145,62 @@ class Ressources:
     PROPERTIES = "/Properties"  # dictionary, optional
 
 
+class Ressources:  # deprecated
+    """
+    Use :class: `Resources` instead.
+
+    .. deprecated:: 5.0.0
+    """
+
+    @classmethod  # type: ignore
+    @property
+    def EXT_G_STATE(cls) -> str:
+        deprecate_with_replacement("Ressources", "Resources", "5.0.0")
+        return "/ExtGState"  # dictionary, optional
+
+    @classmethod  # type: ignore
+    @property
+    def COLOR_SPACE(cls) -> str:
+        deprecate_with_replacement("Ressources", "Resources", "5.0.0")
+        return "/ColorSpace"  # dictionary, optional
+
+    @classmethod  # type: ignore
+    @property
+    def PATTERN(cls) -> str:
+        deprecate_with_replacement("Ressources", "Resources", "5.0.0")
+        return "/Pattern"  # dictionary, optional
+
+    @classmethod  # type: ignore
+    @property
+    def SHADING(cls) -> str:
+        deprecate_with_replacement("Ressources", "Resources", "5.0.0")
+        return "/Shading"  # dictionary, optional
+
+    @classmethod  # type: ignore
+    @property
+    def XOBJECT(cls) -> str:
+        deprecate_with_replacement("Ressources", "Resources", "5.0.0")
+        return "/XObject"  # dictionary, optional
+
+    @classmethod  # type: ignore
+    @property
+    def FONT(cls) -> str:
+        deprecate_with_replacement("Ressources", "Resources", "5.0.0")
+        return "/Font"  # dictionary, optional
+
+    @classmethod  # type: ignore
+    @property
+    def PROC_SET(cls) -> str:
+        deprecate_with_replacement("Ressources", "Resources", "5.0.0")
+        return "/ProcSet"  # array, optional
+
+    @classmethod  # type: ignore
+    @property
+    def PROPERTIES(cls) -> str:
+        deprecate_with_replacement("Ressources", "Resources", "5.0.0")
+        return "/Properties"  # dictionary, optional
+
+
 class PagesAttributes:
     """Page Attributes, Table 6.2, Page 52."""
 
@@ -629,7 +690,7 @@ class AnnotationFlag(IntFlag):
     PageAttributes,
     PageLayouts,
     PagesAttributes,
-    Ressources,
+    Resources,
     StreamAttributes,
     TrailerKeys,
     TypArguments,
diff --git a/pypdf/generic/_data_structures.py b/pypdf/generic/_data_structures.py
index bb62c69cb..838336a16 100644
--- a/pypdf/generic/_data_structures.py
+++ b/pypdf/generic/_data_structures.py
@@ -1416,9 +1416,6 @@ class Destination(TreeObject):
     node: Optional[
         DictionaryObject
     ] = None  # node provide access to the original Object
-    childs: List[
-        Any
-    ] = []  # used in PdfWriter - TODO: should be children  # noqa: RUF012
 
     def __init__(
         self,
@@ -1426,6 +1423,8 @@ def __init__(
         page: Union[NumberObject, IndirectObject, NullObject, DictionaryObject],
         fit: Fit,
     ) -> None:
+        self._filtered_children: List[Any] = []  # used in PdfWriter
+
         typ = fit.fit_type
         args = fit.fit_args