diff --git a/doc/28_ref_optional_semantics.qbk b/doc/28_ref_optional_semantics.qbk
index 3ebf6d8..e55771b 100644
--- a/doc/28_ref_optional_semantics.qbk
+++ b/doc/28_ref_optional_semantics.qbk
@@ -1136,21 +1136,21 @@ __SPACE__
 [#reference_optional_ref_reset_value]
 [: `template<class R> void optional<T&>::reset ( R&& r) noexcept;`]
 * [*Effects:] Equivalent to `*this = std::forward<R>(r)`.
-* [*Remarks:] This function is depprecated.
+* [*Remarks:] This function is deprecated.
 
 __SPACE__
 
 [#reference_optional_ref_is_initialized]
 [: `bool optional<T&>::is_initialized() const noexcept;`]
 * [*Effects:] Equivalent to `return bool(*this)`.
-* [*Remarks:] This function is depprecated.
+* [*Remarks:] This function is deprecated.
 
 __SPACE__
 
 [#reference_optional_ref_get_value_or_value]
 [: `template<class R> T& optional<T&>::get_value_or( R&& r ) const noexcept;`]
 * [*Effects:] Equivalent to `return value_or(std::forward<R>(r);`.
-* [*Remarks:] This function is depprecated.
+* [*Remarks:] This function is deprecated.
 
 [endsect]
 
diff --git a/doc/html/boost_optional/reference/header__boost_optional_optional_hpp_/detailed_semantics___optional_references.html b/doc/html/boost_optional/reference/header__boost_optional_optional_hpp_/detailed_semantics___optional_references.html
index cbc3d64..42d7e20 100644
--- a/doc/html/boost_optional/reference/header__boost_optional_optional_hpp_/detailed_semantics___optional_references.html
+++ b/doc/html/boost_optional/reference/header__boost_optional_optional_hpp_/detailed_semantics___optional_references.html
@@ -502,7 +502,7 @@
               <span class="bold"><strong>Effects:</strong></span> Equivalent to <code class="computeroutput"><span class="special">*</span><span class="keyword">this</span> <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">forward</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;(</span><span class="identifier">r</span><span class="special">)</span></code>.
             </li>
 <li class="listitem">
-              <span class="bold"><strong>Remarks:</strong></span> This function is depprecated.
+              <span class="bold"><strong>Remarks:</strong></span> This function is deprecated.
             </li>
 </ul></div>
 <p>
@@ -516,7 +516,7 @@
               <span class="bold"><strong>Effects:</strong></span> Equivalent to <code class="computeroutput"><span class="keyword">return</span> <span class="keyword">bool</span><span class="special">(*</span><span class="keyword">this</span><span class="special">)</span></code>.
             </li>
 <li class="listitem">
-              <span class="bold"><strong>Remarks:</strong></span> This function is depprecated.
+              <span class="bold"><strong>Remarks:</strong></span> This function is deprecated.
             </li>
 </ul></div>
 <p>
@@ -532,7 +532,7 @@
               <span class="bold"><strong>Effects:</strong></span> Equivalent to <code class="computeroutput"><span class="keyword">return</span> <span class="identifier">value_or</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">forward</span><span class="special">&lt;</span><span class="identifier">R</span><span class="special">&gt;(</span><span class="identifier">r</span><span class="special">);</span></code>.
             </li>
 <li class="listitem">
-              <span class="bold"><strong>Remarks:</strong></span> This function is depprecated.
+              <span class="bold"><strong>Remarks:</strong></span> This function is deprecated.
             </li>
 </ul></div>
 </div>
diff --git a/include/boost/optional/detail/old_optional_implementation.hpp b/include/boost/optional/detail/old_optional_implementation.hpp
index 5aaeec1..0128de4 100644
--- a/include/boost/optional/detail/old_optional_implementation.hpp
+++ b/include/boost/optional/detail/old_optional_implementation.hpp
@@ -336,7 +336,7 @@ class optional_base : public optional_tag
     // No-throw (assuming T::~T() doesn't)
     void reset() BOOST_NOEXCEPT { destroy(); }
 
-    // **DEPPRECATED** Replaces the current value -if any- with 'val'
+    // **DEPRECATED** Replaces the current value -if any- with 'val'
     void reset ( argument_type val ) { assign(val); }
 
     // Returns a pointer to the value if this is initialized, otherwise,
diff --git a/include/boost/optional/detail/optional_trivially_copyable_base.hpp b/include/boost/optional/detail/optional_trivially_copyable_base.hpp
index 4049918..c1f8004 100644
--- a/include/boost/optional/detail/optional_trivially_copyable_base.hpp
+++ b/include/boost/optional/detail/optional_trivially_copyable_base.hpp
@@ -142,7 +142,7 @@ class tc_optional_base : public optional_tag
     // No-throw (assuming T::~T() doesn't)
     void reset() BOOST_NOEXCEPT { destroy(); }
 
-    // **DEPPRECATED** Replaces the current value -if any- with 'val'
+    // **DEPRECATED** Replaces the current value -if any- with 'val'
     void reset ( argument_type val ) BOOST_NOEXCEPT { assign(val); }
 
     // Returns a pointer to the value if this is initialized, otherwise,
diff --git a/include/boost/optional/optional.hpp b/include/boost/optional/optional.hpp
index 1d6b6d1..d93f171 100644
--- a/include/boost/optional/optional.hpp
+++ b/include/boost/optional/optional.hpp
@@ -392,7 +392,7 @@ class optional_base : public optional_tag
     // No-throw (assuming T::~T() doesn't)
     void reset() BOOST_NOEXCEPT { destroy(); }
 
-    // **DEPPRECATED** Replaces the current value -if any- with 'val'
+    // **DEPRECATED** Replaces the current value -if any- with 'val'
     void reset ( argument_type val ) { assign(val); }
 
     // Returns a pointer to the value if this is initialized, otherwise,