diff --git a/src/awkward/_namedaxis.py b/src/awkward/_namedaxis.py
index 9d224791b2..f71f94a179 100644
--- a/src/awkward/_namedaxis.py
+++ b/src/awkward/_namedaxis.py
@@ -70,18 +70,6 @@ def _get_named_axis(
         return {}
 
 
-def _supports_named_axis(ctx: MaybeSupportsNamedAxis | AttrsNamedAxisMapping) -> bool:
-    """Check if the given ctx supports named axis.
-
-    Args:
-        ctx (SupportsNamedAxis or AttrsNamedAxisMapping): The ctx to check.
-
-    Returns:
-        bool: True if the ctx supports named axis, False otherwise.
-    """
-    return bool(_get_named_axis(ctx))
-
-
 def _make_positional_axis_tuple(n: int) -> tuple[int, ...]:
     """
     Generates a positional axis tuple of length n.
@@ -112,8 +100,6 @@ def _is_valid_named_axis(axis: AxisName) -> bool:
     Examples:
         >>> _is_valid_named_axis("x")
         True
-        >>> _is_valid_named_axis(NamedAxisMarker())
-        True
         >>> _is_valid_named_axis(1)
         False
     """
@@ -288,9 +274,6 @@ def _set_named_axis_to_attrs(
 # - "remove one" (_remove_named_axis): Remove the named axis from the output array, e.g.: `ak.sum`
 # - "add one" (_add_named_axis): Add a new named axis to the output array, e.g.: `ak.concatenate, ak.singletons` (not clear yet...)
 # - "unify" (_unify_named_axis): Unify the named axis in the output array given two input arrays, e.g.: `__add__`
-# - "collapse" (_collapse_named_axis): Collapse multiple named axis to None in the output array, e.g.: `ak.flatten`
-# - "permute" (_permute_named_axis): Permute the named axis in the output array, e.g.: `ak.transpose` (does this exist?)
-# - "contract" (_contract_named_axis): Contract the named axis in the output array, e.g.: `matmul` (does this exist?)
 
 
 def _keep_named_axis(
@@ -525,13 +508,6 @@ def _add_named_axis(
     return out
 
 
-def _permute_named_axis(
-    axis: int,
-    named_axis: AxisTuple,
-) -> AxisTuple:
-    raise NotImplementedError()
-
-
 def _unify_named_axis(
     named_axis1: AxisMapping,
     named_axis2: AxisMapping,
@@ -602,24 +578,6 @@ def _get_axis_name(
     return unified_named_axis
 
 
-def _collapse_named_axis(
-    named_axis: AxisMapping,
-    axis: tuple[int, ...] | int | None,
-) -> AxisMapping:
-    """
-    Determines the new named axis after collapsing the specified axis. This is useful, for example,
-    when applying a flatten operation along an axis.
-
-    Args:
-        axis (tuple[int, ...] | int | None): The index of the axis to collapse. If None, all axes are collapsed.
-        named_axis (AxisMapping): The current named axis.
-
-    Returns:
-        AxisMapping: The new named axis after collapsing the specified axis.
-    """
-    raise NotImplementedError()
-
-
 class Slicer:
     """
     Provides a more convenient syntax for slicing.
diff --git a/src/awkward/operations/ak_with_named_axis.py b/src/awkward/operations/ak_with_named_axis.py
index 0d6b50efad..c9e5cf0505 100644
--- a/src/awkward/operations/ak_with_named_axis.py
+++ b/src/awkward/operations/ak_with_named_axis.py
@@ -41,15 +41,7 @@ def with_named_axis(
 
     Returns an #ak.Array or #ak.Record (or low-level equivalent, if
     `highlevel=False`) with a new name. This function does not change the
-    array in-place. If the new name is None, then an array without a name is
-    returned.
-
-    The records or tuples may be nested within multiple levels of nested lists.
-    If records are nested within records, only the outermost are affected.
-
-    Setting the `"__record__"` parameter makes it possible to add behaviors
-    to the data; see #ak.Array and #ak.behavior for a more complete
-    description.
+    array in-place. If the new name is None, then the array is returned as it is.
     """
     # Dispatch
     yield (array,)
diff --git a/src/awkward/operations/ak_without_named_axis.py b/src/awkward/operations/ak_without_named_axis.py
index f1d3b70bf8..b19883bf97 100644
--- a/src/awkward/operations/ak_without_named_axis.py
+++ b/src/awkward/operations/ak_without_named_axis.py
@@ -25,8 +25,6 @@ def without_named_axis(
     """
     Args:
         array: Array-like data (anything #ak.to_layout recognizes).
-        named_axis: AxisTuple | AxisMapping: Names to give to the array axis; this assigns
-            the `"__named_axis__"` attr. If None, any existing name is unset.
         highlevel (bool): If True, return an #ak.Array; otherwise, return
             a low-level #ak.contents.Content subclass.
         behavior (None or dict): Custom #ak.behavior for the output array, if
@@ -35,16 +33,8 @@ def without_named_axis(
             high-level.
 
     Returns an #ak.Array or #ak.Record (or low-level equivalent, if
-    `highlevel=False`) with a new name. This function does not change the
-    array in-place. If the new name is None, then an array without a name is
-    returned.
-
-    The records or tuples may be nested within multiple levels of nested lists.
-    If records are nested within records, only the outermost are affected.
-
-    Setting the `"__record__"` parameter makes it possible to add behaviors
-    to the data; see #ak.Array and #ak.behavior for a more complete
-    description.
+    `highlevel=False`) without named axes. This function does not change the
+    array in-place.
     """
     # Dispatch
     yield (array,)