diff --git a/extensions/spellcheck/locales/en-US/hunspell/README_en_US.txt b/extensions/spellcheck/locales/en-US/hunspell/README_en_US.txt
index 8b7f1aa42a77..6a3813d34ce3 100644
--- a/extensions/spellcheck/locales/en-US/hunspell/README_en_US.txt
+++ b/extensions/spellcheck/locales/en-US/hunspell/README_en_US.txt
@@ -1,6 +1,6 @@
 en_US-mozilla Hunspell Dictionary
-Generated from SCOWL Version 2016.11.20
-Tue Dec 13 14:42:45 EST 2016
+Generated from SCOWL Version 2017.01.22
+Tue Jan 24 22:59:28 EST 2017
 
 http://wordlist.sourceforge.net
 
@@ -344,4 +344,4 @@ and Australian word list.  It is under the following copyright:
   OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   SUCH DAMAGE.
 
-Build Date: Tue Dec 13 14:42:45 EST 2016
+Build Date: Tue Jan 24 22:59:28 EST 2017
diff --git a/extensions/spellcheck/locales/en-US/hunspell/dictionary-sources/5-mozilla-added b/extensions/spellcheck/locales/en-US/hunspell/dictionary-sources/5-mozilla-added
index f1d8db857a92..6cb38be647e8 100644
--- a/extensions/spellcheck/locales/en-US/hunspell/dictionary-sources/5-mozilla-added
+++ b/extensions/spellcheck/locales/en-US/hunspell/dictionary-sources/5-mozilla-added
@@ -5546,9 +5546,7 @@ octopi
 oligo
 opposable
 opposer
-outlier
 outlier's
-outliers
 parallelization
 parallelization's
 parallelizations
diff --git a/extensions/spellcheck/locales/en-US/hunspell/dictionary-sources/orig/README_en_US-custom.txt b/extensions/spellcheck/locales/en-US/hunspell/dictionary-sources/orig/README_en_US-custom.txt
index c88c7e0b1ce5..0d725dadb76b 100644
--- a/extensions/spellcheck/locales/en-US/hunspell/dictionary-sources/orig/README_en_US-custom.txt
+++ b/extensions/spellcheck/locales/en-US/hunspell/dictionary-sources/orig/README_en_US-custom.txt
@@ -1,6 +1,6 @@
 en_US-custom Hunspell Dictionary
-Generated from SCOWL Version 2016.11.20
-Tue Dec 13 14:42:42 EST 2016
+Generated from SCOWL Version 2017.01.22
+Tue Jan 24 22:59:27 EST 2017
 
 http://wordlist.sourceforge.net
 
@@ -344,5 +344,5 @@ and Australian word list.  It is under the following copyright:
   OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   SUCH DAMAGE.
 
-Build Date: Tue Dec 13 14:42:42 EST 2016
+Build Date: Tue Jan 24 22:59:27 EST 2017
 With Input Command: ../mk-list -v1 --accents=both en_US 60
diff --git a/extensions/spellcheck/locales/en-US/hunspell/dictionary-sources/orig/en_US-custom.dic b/extensions/spellcheck/locales/en-US/hunspell/dictionary-sources/orig/en_US-custom.dic
index cd931d32f7e6..53e1bb406e35 100644
--- a/extensions/spellcheck/locales/en-US/hunspell/dictionary-sources/orig/en_US-custom.dic
+++ b/extensions/spellcheck/locales/en-US/hunspell/dictionary-sources/orig/en_US-custom.dic
@@ -1,4 +1,4 @@
-49461
+49467
 0/nm
 0th/pt
 1/n1
@@ -2429,6 +2429,7 @@ Cyril/M
 Cyrillic/M
 Cyrus/M
 Czech/M
+Czechia/M
 Czechoslovak
 Czechoslovakia/M
 Czechoslovakian/SM
@@ -21165,6 +21166,8 @@ dyslexic/SM
 dyspepsia/M
 dyspeptic/MS
 dysphagia
+dysphoria
+dysphoric
 dysprosium/M
 dystonia
 dz
@@ -34674,6 +34677,7 @@ outlast/DSG
 outlaw/SGMD
 outlay/SGM
 outlet/SM
+outlier/S
 outline/MGDS
 outlive/GDS
 outlook/MS
@@ -45327,6 +45331,8 @@ thankfulness/M
 thankless/PY
 thanklessness/M
 thanksgiving/SM
+that'd
+that'll
 that/M
 thatch/MDRSZG
 thatcher/M
diff --git a/extensions/spellcheck/locales/en-US/hunspell/en-US.dic b/extensions/spellcheck/locales/en-US/hunspell/en-US.dic
index 87a626b5fb03..429c95198c25 100644
--- a/extensions/spellcheck/locales/en-US/hunspell/en-US.dic
+++ b/extensions/spellcheck/locales/en-US/hunspell/en-US.dic
@@ -1,4 +1,4 @@
-52343
+52348
 0/nm
 0th/pt
 1/n1
@@ -3028,6 +3028,7 @@ Cyrille/M
 Cyrillic/M
 Cyrus/M
 Czech/M
+Czechia/M
 Czechoslovak
 Czechoslovakia/M
 Czechoslovakian/SM
@@ -23897,6 +23898,8 @@ dyslexic/SM
 dyspepsia/M
 dyspeptic/MS
 dysphagia
+dysphoria
+dysphoric
 dysprosium/M
 dystonia
 dz
@@ -48195,6 +48198,8 @@ thankfulness/M
 thankless/PY
 thanklessness/M
 thanksgiving/SM
+that'd
+that'll
 that/M
 thatch/MDRSZG
 thatcher/M