Index: clang/lib/Sema/SemaLookup.cpp
===================================================================
--- clang/lib/Sema/SemaLookup.cpp
+++ clang/lib/Sema/SemaLookup.cpp
@@ -4310,15 +4310,38 @@
     std::string CorrectionStr = Correction.getAsString(SemaRef.getLangOpts());
     for (TypoResultList::iterator RI = CList.begin(), RIEnd = CList.end();
          RI != RIEnd; ++RI) {
-      // If the Correction refers to a decl already in the result list,
-      // replace the existing result if the string representation of Correction
-      // comes before the current result alphabetically, then stop as there is
-      // nothing more to be done to add Correction to the candidate set.
-      if (RI->getCorrectionDecl() == NewND) {
-        if (CorrectionStr < RI->getAsString(SemaRef.getLangOpts()))
-          *RI = Correction;
+      if (RI->getCorrectionDecl() != NewND)
+        continue;
+
+      // The Correction refers to a decl already in the list. No insertion is
+      // necessary and all further cases will return.
+
+      auto IsDeprecated = [](Decl *decl) {
+        while (decl) {
+          if (decl->isDeprecated())
+            return true;
+          decl = llvm::dyn_cast_or_null<NamespaceDecl>(decl->getDeclContext());
+        }
+        return false;
+      };
+
+      // If the Correction in the result list is deprecated and the new one
+      // isn't always replace it with the new Correction.
+      // Additionally, don't allow a new deprecated Correction to overwrite
+      // an old not-deprecated one.
+      auto newIsDeprecated = IsDeprecated(Correction.getFoundDecl());
+      auto oldIsDeprecated = IsDeprecated(RI->getFoundDecl());
+      if (oldIsDeprecated && !newIsDeprecated) {
+        *RI = Correction;
         return;
       }
+      if (newIsDeprecated && !oldIsDeprecated)
+        return;
+
+      // Otherwise, simply sort them alphabetically.
+      if (CorrectionStr < RI->getAsString(SemaRef.getLangOpts()))
+        *RI = Correction;
+      return;
     }
   }
   if (CList.empty() || Correction.isResolved())
Index: clang/test/SemaCXX/typo-correction.cpp
===================================================================
--- clang/test/SemaCXX/typo-correction.cpp
+++ clang/test/SemaCXX/typo-correction.cpp
@@ -757,3 +757,17 @@
     b = g_volatile_uchar // expected-error {{did you mean 'g_volatile_char'}}
   };
 }
+
+
+namespace PR47272
+{
+namespace Views {
+int Take(); // expected-note{{'Views::Take' declared here}}
+}
+namespace [[deprecated("use Views instead")]] View {
+using Views::Take;
+}
+void function() {
+  int x = ::Take(); // expected-error{{no member named 'Take' in the global namespace; did you mean 'Views::Take'?}}
+}
+}