diff --git a/codespell_lib/data/dictionary.txt b/codespell_lib/data/dictionary.txt
index a2d569b..27b36a4 100644
--- a/codespell_lib/data/dictionary.txt
+++ b/codespell_lib/data/dictionary.txt
@@ -21663,6 +21663,7 @@
 prestigous->prestigious
 presuambly->presumably
 presumabely->presumably
+presumaby->presumably
 presumebly->presumably
 presumely->presumably
 presumibly->presumably