diff --git a/src/_pytest/pathlib.py b/src/_pytest/pathlib.py
index 3efd2b1d7..a25ccc624 100644
--- a/src/_pytest/pathlib.py
+++ b/src/_pytest/pathlib.py
@@ -172,7 +172,7 @@ def rm_rf(path: Path) -> None:
 
 
 def find_prefixed(root: Path, prefix: str) -> Iterator["os.DirEntry[str]"]:
-    """Find all elements in root that begin with the prefix, case insensitive."""
+    """Find all elements in root that begin with the prefix, case-insensitive."""
     l_prefix = prefix.lower()
     for x in os.scandir(root):
         if x.name.lower().startswith(l_prefix):
diff --git a/testing/_py/test_local.py b/testing/_py/test_local.py
index ad2526571..609a29d47 100644
--- a/testing/_py/test_local.py
+++ b/testing/_py/test_local.py
@@ -667,7 +667,7 @@ class TestLocalPath(CommonFSTests):
         assert p == os.path.expanduser("~")
 
     @pytest.mark.skipif(
-        not sys.platform.startswith("win32"), reason="case insensitive only on windows"
+        not sys.platform.startswith("win32"), reason="case-insensitive only on windows"
     )
     def test_eq_hash_are_case_insensitive_on_windows(self):
         a = local("/some/path")
diff --git a/testing/test_conftest.py b/testing/test_conftest.py
index 3116dfe25..441446d58 100644
--- a/testing/test_conftest.py
+++ b/testing/test_conftest.py
@@ -396,7 +396,7 @@ def test_conftest_symlink_files(pytester: Pytester) -> None:
 
 @pytest.mark.skipif(
     os.path.normcase("x") != os.path.normcase("X"),
-    reason="only relevant for case insensitive file systems",
+    reason="only relevant for case-insensitive file systems",
 )
 def test_conftest_badcase(pytester: Pytester) -> None:
     """Check conftest.py loading when directory casing is wrong (#5792)."""