diff --git a/lodash.js b/lodash.js
index 5659d268c..f52b48391 100644
--- a/lodash.js
+++ b/lodash.js
@@ -187,7 +187,8 @@
       rsBreakRange = rsMathOpRange + rsNonCharRange + rsQuoteRange + rsSpaceRange;
 
   /** Used to compose unicode capture groups. */
-  var rsAstral = '[' + rsAstralRange + ']',
+  var rsApos = "['\u2019]",
+      rsAstral = '[' + rsAstralRange + ']',
       rsBreak = '[' + rsBreakRange + ']',
       rsCombo = '[' + rsComboMarksRange + rsComboSymbolsRange + ']',
       rsDigits = '\\d+',
@@ -205,6 +206,8 @@
   /** Used to compose unicode regexes. */
   var rsLowerMisc = '(?:' + rsLower + '|' + rsMisc + ')',
       rsUpperMisc = '(?:' + rsUpper + '|' + rsMisc + ')',
+      rsOptLowerContr = '(?:' + rsApos + '(?:d|ll|m|re|s|t|ve))?',
+      rsOptUpperContr = '(?:' + rsApos + '(?:D|LL|M|RE|S|T|VE))?',
       reOptMod = rsModifier + '?',
       rsOptVar = '[' + rsVarRange + ']?',
       rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*',
@@ -212,6 +215,9 @@
       rsEmoji = '(?:' + [rsDingbat, rsRegional, rsSurrPair].join('|') + ')' + rsSeq,
       rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')';
 
+  /** Used to match apostrophes. */
+  var reApos = RegExp(rsApos, 'g');
+
   /**
    * Used to match [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks) and
    * [combining diacritical marks for symbols](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks_for_Symbols).
@@ -223,10 +229,10 @@
 
   /** Used to match complex or compound words. */
   var reComplexWord = RegExp([
-    rsUpper + '?' + rsLower + '+(?=' + [rsBreak, rsUpper, '$'].join('|') + ')',
-    rsUpperMisc + '+(?=' + [rsBreak, rsUpper + rsLowerMisc, '$'].join('|') + ')',
-    rsUpper + '?' + rsLowerMisc + '+',
-    rsUpper + '+',
+    rsUpper + '?' + rsLower + '+' + rsOptLowerContr + '(?=' + [rsBreak, rsUpper, '$'].join('|') + ')',
+    rsUpperMisc + '+' + rsOptUpperContr + '(?=' + [rsBreak, rsUpper + rsLowerMisc, '$'].join('|') + ')',
+    rsUpper + '?' + rsLowerMisc + '+' + rsOptLowerContr,
+    rsUpper + '+' + rsOptUpperContr,
     rsDigits,
     rsEmoji
   ].join('|'), 'g');
@@ -4388,7 +4394,7 @@
      */
     function createCompounder(callback) {
       return function(string) {
-        return arrayReduce(words(deburr(string)), callback, '');
+        return arrayReduce(words(deburr(string).replace(reApos, '')), callback, '');
       };
     }
 
diff --git a/test/test.js b/test/test.js
index c647fcd65..a3f8f8940 100644
--- a/test/test.js
+++ b/test/test.js
@@ -2134,7 +2134,32 @@
       assert.deepEqual(actual, lodashStable.map(burredLetters, alwaysTrue));
     });
 
-    QUnit.test('`_.' + methodName + '` should trim latin-1 mathematical operators', function(assert) {
+    QUnit.test('`_.' + methodName + '` should remove contraction apostrophes', function(assert) {
+      assert.expect(2);
+
+      var postfixes = ['d', 'll', 'm', 're', 's', 't', 've'];
+
+      lodashStable.each(["'", '\u2019'], function(apos) {
+        var actual = lodashStable.map(postfixes, function(postfix) {
+          return func('a b' + apos + postfix +  ' c');
+        });
+
+        var expected = lodashStable.map(postfixes, function(postfix) {
+          switch (caseName) {
+            case 'camel': return 'aB'  + postfix + 'C';
+            case 'kebab': return 'a-b' + postfix + '-c';
+            case 'lower': return 'a b' + postfix + ' c';
+            case 'snake': return 'a_b' + postfix + '_c';
+            case 'start': return 'A B' + postfix + ' C';
+            case 'upper': return 'A B' + postfix.toUpperCase() + ' C';
+          }
+        });
+
+        assert.deepEqual(actual, expected);
+      });
+    });
+
+    QUnit.test('`_.' + methodName + '` should remove latin-1 mathematical operators', function(assert) {
       assert.expect(1);
 
       var actual = lodashStable.map(['\xd7', '\xf7'], func);
@@ -2176,7 +2201,7 @@
     QUnit.test('should get the original value after cycling through all case methods', function(assert) {
       assert.expect(1);
 
-      var funcs = [_.camelCase, _.kebabCase, _.snakeCase, _.startCase, _.camelCase];
+      var funcs = [_.camelCase, _.kebabCase, _.lowerCase, _.snakeCase, _.startCase, _.lowerCase, _.camelCase];
 
       var actual = lodashStable.reduce(funcs, function(result, func) {
         return func(result);