diff --git a/Documentation/RelNotes/1.7.11.2.txt b/Documentation/RelNotes/1.7.11.2.txt
index a0d24d1270..f0cfd02d6f 100644
--- a/Documentation/RelNotes/1.7.11.2.txt
+++ b/Documentation/RelNotes/1.7.11.2.txt
@@ -31,7 +31,7 @@ Fixes since v1.7.11.1
  * "git diff --no-index" did not work with pagers correctly.
 
  * "git diff COPYING HEAD:COPYING" gave a nonsense error message that
-   claimed that the treeish HEAD did not have COPYING in it.
+   claimed that the tree-ish HEAD did not have COPYING in it.
 
  * When "git log" gets "--simplify-merges/by-decoration" together with
    "--first-parent", the combination of these options makes the
diff --git a/Documentation/git-cat-file.txt b/Documentation/git-cat-file.txt
index 10fbc6a373..e468cebf31 100644
--- a/Documentation/git-cat-file.txt
+++ b/Documentation/git-cat-file.txt
@@ -54,7 +54,7 @@ OPTIONS
 
 --textconv::
 	Show the content as transformed by a textconv filter. In this case,
-	<object> has be of the form <treeish>:<path>, or :<path> in order
+	<object> has be of the form <tree-ish>:<path>, or :<path> in order
 	to apply the filter to the content recorded in the index at <path>.
 
 --batch::
diff --git a/Documentation/git-merge-tree.txt b/Documentation/git-merge-tree.txt
index c5f84b6495..58731c1942 100644
--- a/Documentation/git-merge-tree.txt
+++ b/Documentation/git-merge-tree.txt
@@ -13,7 +13,7 @@ SYNOPSIS
 
 DESCRIPTION
 -----------
-Reads three treeish, and output trivial merge results and
+Reads three tree-ish, and output trivial merge results and
 conflicting stages to the standard output.  This is similar to
 what three-way 'git read-tree -m' does, but instead of storing the
 results in the index, the command outputs the entries to the
diff --git a/fast-import.c b/fast-import.c
index 23f625f561..019be11be7 100644
--- a/fast-import.c
+++ b/fast-import.c
@@ -2957,7 +2957,7 @@ static struct object_entry *dereference(struct object_entry *oe,
 	case OBJ_TAG:
 		break;
 	default:
-		die("Not a treeish: %s", command_buf.buf);
+		die("Not a tree-ish: %s", command_buf.buf);
 	}
 
 	if (oe->pack_id != MAX_PACK_ID) {	/* in a pack being written */
@@ -3041,7 +3041,7 @@ static void parse_ls(struct branch *b)
 	struct tree_entry *root = NULL;
 	struct tree_entry leaf = {NULL};
 
-	/* ls SP (<treeish> SP)? <path> */
+	/* ls SP (<tree-ish> SP)? <path> */
 	p = command_buf.buf + strlen("ls ");
 	if (*p == '"') {
 		if (!b)
diff --git a/git-cvsserver.perl b/git-cvsserver.perl
index a0d796e570..a9f6f8ebd4 100755
--- a/git-cvsserver.perl
+++ b/git-cvsserver.perl
@@ -4338,7 +4338,7 @@ sub getAnyHead
 =head2 getRevisionDirMap
 
 A "revision dir map" contains all the plain-file filenames associated
-with a particular revision (treeish), organized by directory:
+with a particular revision (tree-ish), organized by directory:
 
   $type = $out->{$dir}{$fullName}
 
diff --git a/test-match-trees.c b/test-match-trees.c
index a3c4688778..2ef725e5ff 100644
--- a/test-match-trees.c
+++ b/test-match-trees.c
@@ -12,10 +12,10 @@ int main(int ac, char **av)
 		die("cannot parse %s as an object name", av[2]);
 	one = parse_tree_indirect(hash1);
 	if (!one)
-		die("not a treeish %s", av[1]);
+		die("not a tree-ish %s", av[1]);
 	two = parse_tree_indirect(hash2);
 	if (!two)
-		die("not a treeish %s", av[2]);
+		die("not a tree-ish %s", av[2]);
 
 	shift_tree(one->object.sha1, two->object.sha1, shifted, -1);
 	printf("shifted: %s\n", sha1_to_hex(shifted));