diff --git a/g5501-g5510/g5504.md b/g5501-g5510/g5504.md
new file mode 100644
index 00000000..e88ce3cc
--- /dev/null
+++ b/g5501-g5510/g5504.md
@@ -0,0 +1,6 @@
+# χθές/chthes
+This word is used to describe an action or situation. It is an adverb.
+
+* This word describes an action or situation that took place yesterday. 
+
+See: John 4:52; Acts 7:28; Hebrews 13:8