diff --git a/CHANGELOG.md b/CHANGELOG.md
index cb90cebd3..4d3f275a7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -128,7 +128,7 @@ and the memory is available to the kernel when it needs it.
 * [BUGFIX] Check if label value is valid when unmarshaling external labels from YAML. #5316
 * [BUGFIX] Promparse: sort all labels when parsing. #5372
 * [BUGFIX] Reload rules: copy state on both name and labels. #5368
-* [BUGFIX] Exponentation operator to drop metric name in result of operation. #5329
+* [BUGFIX] Exponentiation operator to drop metric name in result of operation. #5329
 * [BUGFIX] Config: resolve more file paths. #5284
 * [BUGFIX] Promtool: resolve relative paths in alert test files. #5336
 * [BUGFIX] Set TLSHandshakeTimeout in HTTP transport. common#179
diff --git a/scrape/scrape_test.go b/scrape/scrape_test.go
index 2e2141761..b43b36cbc 100644
--- a/scrape/scrape_test.go
+++ b/scrape/scrape_test.go
@@ -550,12 +550,12 @@ func TestScrapeLoopRun(t *testing.T) {
 	select {
 	case <-signal:
 	case <-time.After(5 * time.Second):
-		t.Fatalf("Cancelation during initial offset failed")
+		t.Fatalf("Cancellation during initial offset failed")
 	case err := <-errc:
 		t.Fatalf("Unexpected error: %s", err)
 	}
 
-	// The provided timeout must cause cancelation of the context passed down to the
+	// The provided timeout must cause cancellation of the context passed down to the
 	// scraper. The scraper has to respect the context.
 	scraper.offsetDur = 0
 
@@ -607,7 +607,7 @@ func TestScrapeLoopRun(t *testing.T) {
 	case err := <-errc:
 		t.Fatalf("Unexpected error: %s", err)
 	case <-time.After(3 * time.Second):
-		t.Fatalf("Loop did not terminate on context cancelation")
+		t.Fatalf("Loop did not terminate on context cancellation")
 	}
 }
 
@@ -1469,7 +1469,7 @@ func TestTargetScrapeScrapeCancel(t *testing.T) {
 		if err == nil {
 			errc <- errors.New("Expected error but got nil")
 		} else if ctx.Err() != context.Canceled {
-			errc <- errors.Errorf("Expected context cancelation error but got: %s", ctx.Err())
+			errc <- errors.Errorf("Expected context cancellation error but got: %s", ctx.Err())
 		}
 		close(errc)
 	}()
diff --git a/tsdb/chunkenc/xor.go b/tsdb/chunkenc/xor.go
index ca20309f6..ce6e0a951 100644
--- a/tsdb/chunkenc/xor.go
+++ b/tsdb/chunkenc/xor.go
@@ -14,7 +14,7 @@
 // The code in this file was largely written by Damian Gryski as part of
 // https://github.com/dgryski/go-tsz and published under the license below.
 // It was modified to accommodate reading from byte slices without modifying
-// the underlying bytes, which would panic when reading from mmaped
+// the underlying bytes, which would panic when reading from mmap'd
 // read-only byte slices.
 
 // Copyright (c) 2015,2016 Damian Gryski <damian@gryski.com>
diff --git a/tsdb/db_test.go b/tsdb/db_test.go
index 049192d33..e1a3f4afd 100644
--- a/tsdb/db_test.go
+++ b/tsdb/db_test.go
@@ -2271,7 +2271,7 @@ func TestDBReadOnly(t *testing.T) {
 		err            error
 	)
 
-	// Boostrap the db.
+	// Bootstrap the db.
 	{
 		dbDir, err = ioutil.TempDir("", "test")
 		testutil.Ok(t, err)
@@ -2370,7 +2370,7 @@ func TestDBReadOnly_FlushWAL(t *testing.T) {
 		maxt   int
 	)
 
-	// Boostrap the db.
+	// Bootstrap the db.
 	{
 		dbDir, err = ioutil.TempDir("", "test")
 		testutil.Ok(t, err)