diff --git a/source/blender/blenkernel/intern/pbvh_pixels_copy.cc b/source/blender/blenkernel/intern/pbvh_pixels_copy.cc
index 1146d155a77..b09a192ec8b 100644
--- a/source/blender/blenkernel/intern/pbvh_pixels_copy.cc
+++ b/source/blender/blenkernel/intern/pbvh_pixels_copy.cc
@@ -222,7 +222,7 @@ struct Rows {
     /** This pixel is directly affected by a brush and doesn't need to be solved. */
     Brush,
     SelectedForCloserExamination,
-    /** This pixel will be copid from another pixel to solve non-manifold edge bleeding. */
+    /** This pixel will be copied from another pixel to solve non-manifold edge bleeding. */
     CopyFromClosestEdge,
   };
 
@@ -233,7 +233,7 @@ struct Rows {
     /**
      * Index of the edge in the list of non-manifold edges.
      *
-     * The edge is kept to calculate athe mix factor between the two pixels that have chosen to
+     * The edge is kept to calculate the mix factor between the two pixels that have chosen to
      * be mixed.
      */
     int64_t edge_index;
@@ -309,7 +309,7 @@ struct Rows {
    * Look for a second source pixel that will be blended with the first source pixel to improve
    * the quality of the fix.
    *
-   * - The second source pixel must be a neighbour pixel of the first source, or the same as the
+   * - The second source pixel must be a neighbor pixel of the first source, or the same as the
    *   first source when no second pixel could be found.
    * - The second source pixel must be a pixel that is painted on by the brush.
    * - The second source pixel must be the second closest pixel , or the first source
diff --git a/source/blender/blenlib/BLI_math_angle_types.hh b/source/blender/blenlib/BLI_math_angle_types.hh
index 5c4230f1322..556f47e9769 100644
--- a/source/blender/blenlib/BLI_math_angle_types.hh
+++ b/source/blender/blenlib/BLI_math_angle_types.hh
@@ -680,21 +680,21 @@ template<typename T = float> struct AngleFraction {
         default:
           BLI_assert_unreachable();
       }
-      /* Resulting angle should be oscilating in [0..pi/4] range. */
+      /* Resulting angle should be oscillating in [0..pi/4] range. */
       BLI_assert(a.numerator_ >= 0 && a.numerator_ <= a.denominator_ / 4);
       T angle = T(M_PI) * (T(a.numerator_) / T(a.denominator_));
       x = math::cos(angle);
       y = math::sin(angle);
-      /* Diagonal symetry "unfolding". */
+      /* Diagonal symmetry "unfolding". */
       if (ELEM(octant, 1, 2)) {
         std::swap(x, y);
       }
     }
-    /* Y axis symetry. */
+    /* Y axis symmetry. */
     if (octant >= 2) {
       x = -x;
     }
-    /* X axis symetry. */
+    /* X axis symmetry. */
     if (is_negative) {
       y = -y;
     }
diff --git a/source/blender/blenlib/BLI_math_base.hh b/source/blender/blenlib/BLI_math_base.hh
index c75470fe709..87280eead3a 100644
--- a/source/blender/blenlib/BLI_math_base.hh
+++ b/source/blender/blenlib/BLI_math_base.hh
@@ -90,8 +90,10 @@ template<typename T> inline T floor(const T &a)
   return std::floor(a);
 }
 
-/* Repeats the sawtooth pattern even on negative numbers.
- * ex: 'mod_periodic(-3, 4) = 1', 'mod(-3, 4)= -3'  */
+/**
+ * Repeats the saw-tooth pattern even on negative numbers.
+ * ex: `mod_periodic(-3, 4) = 1`, `mod(-3, 4)= -3`
+ */
 template<typename T> inline T mod_periodic(const T &a, const T &b)
 {
   return a - (b * math::floor(a / b));
diff --git a/source/blender/blenlib/BLI_math_matrix.hh b/source/blender/blenlib/BLI_math_matrix.hh
index 92435392d24..a881f2642f5 100644
--- a/source/blender/blenlib/BLI_math_matrix.hh
+++ b/source/blender/blenlib/BLI_math_matrix.hh
@@ -1379,8 +1379,8 @@ template<typename MatT> [[nodiscard]] MatT orthogonalize(const MatT &mat, const
 
   /**
    * The secondary axis is chosen as follow (X->Y, Y->X, Z->X).
-   * If this axis is coplanar try the third axis.
-   * If also coplanar, make up an axis by shuffling the primary axis coordinates (xyz > yzx).
+   * If this axis is co-planar try the third axis.
+   * If also co-planar, make up an axis by shuffling the primary axis coordinates (XYZ > YZX).
    */
   switch (axis) {
     case Axis::X:
diff --git a/source/blender/blenlib/tests/BLI_math_rotation_types_test.cc b/source/blender/blenlib/tests/BLI_math_rotation_types_test.cc
index 9f87f67d57b..26171c6855a 100644
--- a/source/blender/blenlib/tests/BLI_math_rotation_types_test.cc
+++ b/source/blender/blenlib/tests/BLI_math_rotation_types_test.cc
@@ -271,7 +271,7 @@ TEST(math_rotation_types, AngleFraction)
     EXPECT_NEAR(angle.cos(), cos((T(M_PI) * i) / 16), 1e-6f);
     EXPECT_NEAR(angle.sin(), sin((T(M_PI) * i) / 16), 1e-6f);
 
-    /* Ensure symetry. */
+    /* Ensure symmetry. */
     AngleCartesian angle_opposite(pi + pi * i / 16);
     EXPECT_EQ(angle.cos(), -angle_opposite.cos());
     EXPECT_EQ(angle.sin(), -angle_opposite.sin());
diff --git a/tools/check_source/check_spelling_c_config.py b/tools/check_source/check_spelling_c_config.py
index 077d8468ceb..edc22deb96f 100644
--- a/tools/check_source/check_spelling_c_config.py
+++ b/tools/check_source/check_spelling_c_config.py
@@ -141,6 +141,7 @@ dict_custom = {
     "instantiable",
     "instantiation",
     "instantiations",
+    "interdependencies",
     "interferences",
     "interocular",
     "invariant",