Fix #2370, minor typos and spelling mistakes
diff --git a/tests/suites/test_suite_nist_kw.function b/tests/suites/test_suite_nist_kw.function
index ae3ef80..f1acde9 100644
--- a/tests/suites/test_suite_nist_kw.function
+++ b/tests/suites/test_suite_nist_kw.function
@@ -30,7 +30,7 @@
     memset( key, 0, sizeof( key ) );
 
     /*
-     * 1. Check wrap and unwrap with two seperate contexts
+     * 1. Check wrap and unwrap with two separate contexts
      */
     mbedtls_nist_kw_init( &ctx1 );
     mbedtls_nist_kw_init( &ctx2 );