diff --git a/unicodetools/src/main/resources/org/unicode/text/UCD/AdditionComparisons.txt b/unicodetools/src/main/resources/org/unicode/text/UCD/AdditionComparisons.txt
index 57b2f5e96..bfa6e1eff 100644
--- a/unicodetools/src/main/resources/org/unicode/text/UCD/AdditionComparisons.txt
+++ b/unicodetools/src/main/resources/org/unicode/text/UCD/AdditionComparisons.txt
@@ -16,4 +16,12 @@ Propertywise [\N{KHITAN SMALL SCRIPT CHARACTER-18CFF} \N{KHITAN SMALL SCRIPT CHA
 # In particular, they are scx=Hani:  https://www.unicode.org/review/pri502/feedback.html#ID20240523095709.
 Propertywise [\N{CJK STROKE T} \N{CJK STROKE HXG}\N{CJK STROKE SZP}] AreAlike, Except: Age
 
-## Provisionally assigned. [placeholder for draft PRs]
\ No newline at end of file
+## Provisionally assigned. [placeholder for draft PRs]
+
+# « Another ن, propertywise like the others. ».
+# Differs from ڽ (with three dots above) in Joining_Group,
+# ڽ being jg=Nya vs. jg=Noon for the others; see
+# https://www.unicode.org/versions/latest/ch09.pdf#G39824.
+Let $OldNoons = [ ن ڹ ں ڻ ڼ ڽ ݧ ݨ ݩ ࢉ ]
+Propertywise [ $OldNoons \N{ARABIC LETTER NOON WITH RING ABOVE} ] AreAlike, Except: Confusable_MA Unicode_1_Name Age Block Joining_Group Identifier_Status Identifier_Type Idn_Status
+Propertywise [ $OldNoons - [ڽ] \N{ARABIC LETTER NOON WITH RING ABOVE} ] AreAlike, Except: Confusable_MA Unicode_1_Name Age Block Identifier_Status Identifier_Type Idn_Status
\ No newline at end of file