diff --git a/CHANGELOG.md b/CHANGELOG.md
index ed973cf..7ad02d4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,18 @@
 
 ## [Unreleased][unreleased]
 
+## [v1.9.2]
+
+**Release date: 2026-10-01**
+
+### Added
+
+* Possessive `'s` (also `’s`) as an English particle, with examples for
+  possession and association. Docker merges this dictionary extra into
+  `omw-en:1.4`. Its stable concept ID is `omw-en-extra-possessive-s-y`.
+  ([sign/wn#10](https://github.com/sign/wn/pull/10))
+
+
 ## [v1.9.1]
 
 **Release date: 2026-10-01**
diff --git a/Dockerfile b/Dockerfile
index 7bd9f4e..5c493fb 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -27,6 +27,10 @@ COPY extensions/wikidata-lexemes/output ./extensions/wikidata-lexemes/output
 COPY extensions/wikidata-lexemes/merge_extension.py ./extensions/wikidata-lexemes/merge_extension.py
 RUN python extensions/wikidata-lexemes/merge_extension.py extensions/wikidata-lexemes/output/*.xml
 
+# Small dictionary additions maintained separately from generated Wikidata data.
+COPY extensions/extras/ ./extensions/extras/
+RUN python extensions/wikidata-lexemes/merge_extension.py extensions/extras/*.xml
+
 # Reviewed learner content is opt-in until the dictionary exposes AI attribution.
 ARG INSTALL_ENGLISH_LEARNER=false
 COPY extensions/english-learner/ ./extensions/english-learner/
diff --git a/extensions/extras/README.md b/extensions/extras/README.md
new file mode 100644
index 0000000..553e34b
--- /dev/null
+++ b/extensions/extras/README.md
@@ -0,0 +1,16 @@
+# Dictionary extras
+
+Small, manually maintained additions missing from the source lexicons. Keep
+these separate from generated Wikidata output so regeneration preserves them.
+Docker merges them into their base lexicon using the existing merge utility:
+
+```sh
+python extensions/wikidata-lexemes/merge_extension.py extensions/extras/*.xml
+```
+
+The English extension adds possessive `'s` (also `’s`) as a particle, covering
+possession and association, including independent uses such as “This is John's.”
+It does not add the contractions of “is” or “has.”
+
+Its concept ID is `omw-en-extra-possessive-s-y`; dictionary sign links use the
+short ID `extra-possessive-s-y`. These IDs must remain stable.
diff --git a/extensions/extras/en.xml b/extensions/extras/en.xml
new file mode 100644
index 0000000..363a875
--- /dev/null
+++ b/extensions/extras/en.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE LexicalResource SYSTEM "https://globalwordnet.github.io/schemas/WN-LMF-1.4.dtd">
+<LexicalResource xmlns:dc="https://globalwordnet.github.io/schemas/dc/">
+  <LexiconExtension id="extras-en"
+                    label="English Dictionary Extras"
+                    language="en"
+                    email="amit@nagish.com"
+                    license="https://opensource.org/license/mit/"
+                    version="1.0">
+    <Extends id="omw-en" version="1.4"/>
+    <LexicalEntry id="omw-en-extra-possessive-s">
+      <Lemma writtenForm="'s" partOfSpeech="y"/>
+      <Form writtenForm="’s"/>
+      <Sense id="omw-en-extra-possessive-s-1" synset="omw-en-extra-possessive-s-y"/>
+    </LexicalEntry>
+    <Synset id="omw-en-extra-possessive-s-y" ili="" partOfSpeech="y">
+      <Definition>a marker added to a noun or noun phrase to show possession or association</Definition>
+      <Example>The clinic specializes in women's health.</Example>
+      <Example>This is John's coat.</Example>
+      <Example>This coat is John's.</Example>
+    </Synset>
+  </LexiconExtension>
+</LexicalResource>
diff --git a/wn/__init__.py b/wn/__init__.py
index efc36b7..7ce15ec 100644
--- a/wn/__init__.py
+++ b/wn/__init__.py
@@ -37,7 +37,7 @@
     "word",
     "words",
 )
-__version__ = "1.9.1"
+__version__ = "1.9.2"
 
 from wn._add import add, add_lexical_resource, remove
 from wn._config import config  # noqa: F401