diff --git a/tests/test-push-checkheads-partial-C1.t b/tests/test-push-checkheads-partial-C1.t
--- a/tests/test-push-checkheads-partial-C1.t
+++ b/tests/test-push-checkheads-partial-C1.t
@@ -17,7 +17,7 @@
 ..
 .. new-state:
 ..
-.. * 1 new changesets branches superceeding only the head of the old one
+.. * 1 new changesets branches superseding only the head of the old one
 .. * base of the old branch is still alive
 ..
 .. expected-result:
diff --git a/tests/test-push-checkheads-partial-C2.t b/tests/test-push-checkheads-partial-C2.t
--- a/tests/test-push-checkheads-partial-C2.t
+++ b/tests/test-push-checkheads-partial-C2.t
@@ -17,7 +17,7 @@
 ..
 .. new-state:
 ..
-.. * 1 new changesets branches superceeding only the base of the old one
+.. * 1 new changesets branches superseding only the base of the old one
 .. * The old branch is still alive (base is obsolete, head is alive)
 ..
 .. expected-result:
diff --git a/tests/test-push-checkheads-pruned-B2.t b/tests/test-push-checkheads-pruned-B2.t
--- a/tests/test-push-checkheads-pruned-B2.t
+++ b/tests/test-push-checkheads-pruned-B2.t
@@ -9,7 +9,7 @@
 This case is part of a series of tests checking this behavior.
 
 Category B: simple case involving pruned changesets
-TestCase 2: multi-changeset branch, head is pruned, rest is superceeded
+TestCase 2: multi-changeset branch, head is pruned, rest is superseded
 
 .. old-state:
 ..
diff --git a/tests/test-push-checkheads-pruned-B3.t b/tests/test-push-checkheads-pruned-B3.t
--- a/tests/test-push-checkheads-pruned-B3.t
+++ b/tests/test-push-checkheads-pruned-B3.t
@@ -9,7 +9,7 @@
 This case is part of a series of tests checking this behavior.
 
 Category B: simple case involving pruned changesets
-TestCase 3: multi-changeset branch, other is pruned, rest is superceeded
+TestCase 3: multi-changeset branch, other is pruned, rest is superseded
 
 .. old-state:
 ..
@@ -17,7 +17,7 @@
 ..
 .. new-state:
 ..
-.. * old head is superceeded
+.. * old head is superseded
 .. * old other is pruned
 ..
 .. expected-result:
diff --git a/tests/test-push-checkheads-pruned-B5.t b/tests/test-push-checkheads-pruned-B5.t
--- a/tests/test-push-checkheads-pruned-B5.t
+++ b/tests/test-push-checkheads-pruned-B5.t
@@ -9,7 +9,7 @@
 This case is part of a series of tests checking this behavior.
 
 Category B: simple case involving pruned changesets
-TestCase 5: multi-changeset branch, mix of pruned and superceeded
+TestCase 5: multi-changeset branch, mix of pruned and superseded
 
 .. old-state:
 ..
@@ -18,7 +18,7 @@
 .. new-state:
 ..
 .. * old head is pruned
-.. * old mid is superceeded
+.. * old mid is superseded
 .. * old root is pruned
 ..
 .. expected-result:
diff --git a/tests/test-push-checkheads-pruned-B8.t b/tests/test-push-checkheads-pruned-B8.t
--- a/tests/test-push-checkheads-pruned-B8.t
+++ b/tests/test-push-checkheads-pruned-B8.t
@@ -9,7 +9,7 @@
 This case is part of a series of tests checking this behavior.
 
 Category B: simple case involving pruned changesets
-TestCase 2: multi-changeset branch, head is pruned, rest is superceeded, through other
+TestCase 2: multi-changeset branch, head is pruned, rest is superseded, through other
 
 .. old-state:
 ..
diff --git a/tests/test-push-checkheads-superceed-A1.t b/tests/test-push-checkheads-superceed-A1.t
--- a/tests/test-push-checkheads-superceed-A1.t
+++ b/tests/test-push-checkheads-superceed-A1.t
@@ -8,7 +8,7 @@
 
 This case is part of a series of tests checking this behavior.
 
-Category A: simple case involving a branch being superceeded by another.
+Category A: simple case involving a branch being superseded by another.
 TestCase 1: single-changeset branch
 
 .. old-state:
diff --git a/tests/test-push-checkheads-superceed-A2.t b/tests/test-push-checkheads-superceed-A2.t
--- a/tests/test-push-checkheads-superceed-A2.t
+++ b/tests/test-push-checkheads-superceed-A2.t
@@ -8,7 +8,7 @@
 
 This case is part of a series of tests checking this behavior.
 
-Category A: simple case involving a branch being superceeded by another.
+Category A: simple case involving a branch being superseded by another.
 TestCase 2: multi-changeset branch
 
 .. old-state:
diff --git a/tests/test-push-checkheads-superceed-A3.t b/tests/test-push-checkheads-superceed-A3.t
--- a/tests/test-push-checkheads-superceed-A3.t
+++ b/tests/test-push-checkheads-superceed-A3.t
@@ -8,7 +8,7 @@
 
 This case is part of a series of tests checking this behavior.
 
-Category A: simple case involving a branch being superceeded by another.
+Category A: simple case involving a branch being superseded by another.
 TestCase 3: multi-changeset branch with reordering
 
 Push should be allowed
diff --git a/tests/test-push-checkheads-superceed-A4.t b/tests/test-push-checkheads-superceed-A4.t
--- a/tests/test-push-checkheads-superceed-A4.t
+++ b/tests/test-push-checkheads-superceed-A4.t
@@ -8,7 +8,7 @@
 
 This case is part of a series of tests checking this behavior.
 
-Category A: simple case involving a branch being superceeded by another.
+Category A: simple case involving a branch being superseded by another.
 TestCase 4: New changeset as children of the successor
 
 .. old-state:
diff --git a/tests/test-push-checkheads-superceed-A5.t b/tests/test-push-checkheads-superceed-A5.t
--- a/tests/test-push-checkheads-superceed-A5.t
+++ b/tests/test-push-checkheads-superceed-A5.t
@@ -8,7 +8,7 @@
 
 This case is part of a series of tests checking this behavior.
 
-Category A: simple case involving a branch being superceeded by another.
+Category A: simple case involving a branch being superseded by another.
 TestCase 5: New changeset as parent of the successor
 
 .. old-state:
diff --git a/tests/test-push-checkheads-superceed-A6.t b/tests/test-push-checkheads-superceed-A6.t
--- a/tests/test-push-checkheads-superceed-A6.t
+++ b/tests/test-push-checkheads-superceed-A6.t
@@ -8,7 +8,7 @@
 
 This case is part of a series of tests checking this behavior.
 
-Category A: simple case involving a branch being superceeded by another.
+Category A: simple case involving a branch being superseded by another.
 TestCase 6: multi-changeset branch, split on multiple other, (base on its own branch), same number of head
 
 .. old-state:
@@ -17,8 +17,8 @@
 ..
 .. new-state:
 ..
-.. * 1 new branch superceeding the base of the old-2-changesets-branch,
-.. * 1 new changesets on the old-1-changeset-branch superceeding the head of the other
+.. * 1 new branch superseding the base of the old-2-changesets-branch,
+.. * 1 new changesets on the old-1-changeset-branch superseding the head of the other
 ..
 .. expected-result:
 ..
diff --git a/tests/test-push-checkheads-superceed-A7.t b/tests/test-push-checkheads-superceed-A7.t
--- a/tests/test-push-checkheads-superceed-A7.t
+++ b/tests/test-push-checkheads-superceed-A7.t
@@ -8,7 +8,7 @@
 
 This case is part of a series of tests checking this behavior.
 
-Category A: simple case involving a branch being superceeded by another.
+Category A: simple case involving a branch being superseded by another.
 TestCase 7: multi-changeset branch, split on multiple other, (head on its own branch), same number of head
 
 .. old-state:
@@ -17,8 +17,8 @@
 ..
 .. new-state:
 ..
-.. * 1 new branch superceeding the head of the old-2-changesets-branch,
-.. * 1 new changesets on the old-1-changeset-branch superceeding the base of the other
+.. * 1 new branch superseding the head of the old-2-changesets-branch,
+.. * 1 new changesets on the old-1-changeset-branch superseding the base of the other
 ..
 .. expected-result:
 ..
diff --git a/tests/test-push-checkheads-superceed-A8.t b/tests/test-push-checkheads-superceed-A8.t
--- a/tests/test-push-checkheads-superceed-A8.t
+++ b/tests/test-push-checkheads-superceed-A8.t
@@ -8,7 +8,7 @@
 
 This case is part of a series of tests checking this behavior.
 
-Category A: simple case involving a branch being superceeded by another.
+Category A: simple case involving a branch being superseded by another.
 TestCase 8: single-changeset branch indirect rewrite
 
 .. old-state:
diff --git a/tests/test-push-checkheads-unpushed-D4.t b/tests/test-push-checkheads-unpushed-D4.t
--- a/tests/test-push-checkheads-unpushed-D4.t
+++ b/tests/test-push-checkheads-unpushed-D4.t
@@ -17,8 +17,8 @@
 ..
 .. new-state:
 ..
-.. * 1 new branch superceeding the base of the old-2-changesets-branch,
-.. * 1 new changesets on the old-1-changeset-branch superceeding the head of the other
+.. * 1 new branch superseding the base of the old-2-changesets-branch,
+.. * 1 new changesets on the old-1-changeset-branch superseding the head of the other
 ..
 .. expected-result:
 ..
diff --git a/tests/test-push-checkheads-unpushed-D5.t b/tests/test-push-checkheads-unpushed-D5.t
--- a/tests/test-push-checkheads-unpushed-D5.t
+++ b/tests/test-push-checkheads-unpushed-D5.t
@@ -17,8 +17,8 @@
 ..
 .. new-state:
 ..
-.. * 1 new branch superceeding the head of the old-2-changesets-branch,
-.. * 1 new changesets on the old-1-changeset-branch superceeding the base of the other
+.. * 1 new branch superseding the head of the old-2-changesets-branch,
+.. * 1 new changesets on the old-1-changeset-branch superseding the base of the other
 ..
 .. expected-result:
 ..