diff --git a/src/mnemonics/chinese_simplified.h b/src/mnemonics/chinese_simplified.h
index 1ae8c89d6..0566b1079 100644
--- a/src/mnemonics/chinese_simplified.h
+++ b/src/mnemonics/chinese_simplified.h
@@ -72,7 +72,10 @@ namespace Language
   class Chinese_Simplified: public Base
   {
   public:
-    Chinese_Simplified(): Base("简体中文 (中国)", "Chinese (simplified)", std::vector<std::string>({
+    Chinese_Simplified(): Base("简体中文 (中国)", "Chinese (simplified)", {}, 1)
+    {
+      static constexpr const char * const words[NWORDS] =
+      {
       "的",
       "一",
       "是",
@@ -1699,8 +1702,8 @@ namespace Language
       "秒",
       "浙",
       "貌"
-      }), 1)
-    {
+      };
+      set_words(words);
       populate_maps();
     }
   };
diff --git a/src/mnemonics/dutch.h b/src/mnemonics/dutch.h
index c9806f450..801caf986 100644
--- a/src/mnemonics/dutch.h
+++ b/src/mnemonics/dutch.h
@@ -49,7 +49,10 @@ namespace Language
   class Dutch: public Base
   {
   public:
-    Dutch(): Base("Nederlands", "Dutch", std::vector<std::string>({
+    Dutch(): Base("Nederlands", "Dutch", {}, 4)
+    {
+      static constexpr const char * const words[NWORDS] =
+      {
         "aalglad",
         "aalscholver",
         "aambeeld",
@@ -1676,8 +1679,8 @@ namespace Language
         "zwiep",
         "zwijmel",
         "zworen"
-      }), 4)
-    {
+      };
+      set_words(words);
       populate_maps();
     }
   };
diff --git a/src/mnemonics/english.h b/src/mnemonics/english.h
index ee087674d..d5c5594ef 100644
--- a/src/mnemonics/english.h
+++ b/src/mnemonics/english.h
@@ -49,7 +49,10 @@ namespace Language
   class English: public Base
   {
   public:
-    English(): Base("English", "English", std::vector<std::string>({
+    English(): Base("English", "English", {}, 3)
+    {
+      static constexpr const char * const words[NWORDS] =
+      {
         "abbey",
         "abducts",
         "ability",
@@ -1676,8 +1679,8 @@ namespace Language
         "zombie",
         "zones",
         "zoom"
-      }), 3)
-    {
+      };
+      set_words(words);
       populate_maps();
     }
   };
diff --git a/src/mnemonics/english_old.h b/src/mnemonics/english_old.h
index b31491646..e35b907df 100644
--- a/src/mnemonics/english_old.h
+++ b/src/mnemonics/english_old.h
@@ -51,7 +51,10 @@ namespace Language
   class EnglishOld: public Base
   {
   public:
-    EnglishOld(): Base("EnglishOld", "English (old)", std::vector<std::string>({
+    EnglishOld(): Base("EnglishOld", "English (old)", {}, 4)
+    {
+      static constexpr const char * const words[NWORDS] =
+      {
         "like",
         "just",
         "love",
@@ -1678,8 +1681,8 @@ namespace Language
         "unseen",
         "weapon",
         "weary"
-      }), 4)
-    {
+      };
+      set_words(words);
       populate_maps(ALLOW_DUPLICATE_PREFIXES | ALLOW_SHORT_WORDS);
     }
   };
diff --git a/src/mnemonics/esperanto.h b/src/mnemonics/esperanto.h
index a1d1a3f30..b0be235ed 100644
--- a/src/mnemonics/esperanto.h
+++ b/src/mnemonics/esperanto.h
@@ -58,7 +58,10 @@ namespace Language
   class Esperanto: public Base
   {
   public:
-    Esperanto(): Base("Esperanto", "Esperanto", std::vector<std::string>({
+    Esperanto(): Base("Esperanto", "Esperanto", {}, 4)
+    {
+      static constexpr const char * const words[NWORDS] =
+      {
       "abako",
       "abdiki",
       "abelo",
@@ -1685,8 +1688,8 @@ namespace Language
       "zorgi",
       "zukino",
       "zumilo",
-      }), 4)
-    {
+      };
+      set_words(words);
       populate_maps();
     }
   };
diff --git a/src/mnemonics/french.h b/src/mnemonics/french.h
index 7eaf45650..48ec46f78 100644
--- a/src/mnemonics/french.h
+++ b/src/mnemonics/french.h
@@ -49,7 +49,10 @@ namespace Language
   class French: public Base
   {
   public:
-    French(): Base("Français", "French", std::vector<std::string>({
+    French(): Base("Français", "French", {}, 4)
+    {
+      static constexpr const char * const words[NWORDS] =
+      {
         "abandon",
         "abattre",
         "aboi",
@@ -1676,8 +1679,8 @@ namespace Language
         "zinc",
         "zone",
         "zoom"
-      }), 4)
-    {
+      };
+      set_words(words);
       populate_maps();
     }
   };
diff --git a/src/mnemonics/german.h b/src/mnemonics/german.h
index 8eff43523..883a173a3 100644
--- a/src/mnemonics/german.h
+++ b/src/mnemonics/german.h
@@ -51,7 +51,10 @@ namespace Language
   class German: public Base
   {
   public:
-    German(): Base("Deutsch", "German", std::vector<std::string>({
+    German(): Base("Deutsch", "German", {}, 4)
+    {
+      static constexpr const char * const words[NWORDS] =
+      {
         "Abakus",
         "Abart",
         "abbilden",
@@ -1678,8 +1681,8 @@ namespace Language
         "Zündung",
         "Zweck",
         "Zyklop"
-      }), 4)
-    {
+      };
+      set_words(words);
       populate_maps();
     }
   };
diff --git a/src/mnemonics/italian.h b/src/mnemonics/italian.h
index d5ecb74f4..57cdfa25e 100644
--- a/src/mnemonics/italian.h
+++ b/src/mnemonics/italian.h
@@ -51,7 +51,10 @@ namespace Language
   class Italian: public Base
   {
   public:
-    Italian(): Base("Italiano", "Italian", std::vector<std::string>({
+    Italian(): Base("Italiano", "Italian", {}, 4)
+    {
+      static constexpr const char * const words[NWORDS] =
+      {
         "abbinare",
         "abbonato",
         "abisso",
@@ -1678,8 +1681,8 @@ namespace Language
         "zolfo",
         "zombie",
         "zucchero"
-      }), 4)
-    {
+      };
+      set_words(words);
       populate_maps();
     }
   };
diff --git a/src/mnemonics/japanese.h b/src/mnemonics/japanese.h
index f3b3e4924..5baabedf2 100644
--- a/src/mnemonics/japanese.h
+++ b/src/mnemonics/japanese.h
@@ -71,7 +71,10 @@ namespace Language
   class Japanese: public Base
   {
   public:
-    Japanese(): Base("日本語", "Japanese", std::vector<std::string>({
+    Japanese(): Base("日本語", "Japanese", {}, 3)
+    {
+      static constexpr const char * const words[NWORDS] =
+      {
         "あいこくしん",
         "あいさつ",
         "あいだ",
@@ -1698,8 +1701,8 @@ namespace Language
         "ひさん",
         "びじゅつかん",
         "ひしょ"
-      }), 3)
-    {
+      };
+      set_words(words);
       populate_maps();
     }
   };
diff --git a/src/mnemonics/language_base.h b/src/mnemonics/language_base.h
index cf518ab2a..52e784cef 100644
--- a/src/mnemonics/language_base.h
+++ b/src/mnemonics/language_base.h
@@ -83,7 +83,10 @@ namespace Language
       ALLOW_SHORT_WORDS = 1<<0,
       ALLOW_DUPLICATE_PREFIXES = 1<<1,
     };
-    const std::vector<std::string> word_list; /*!< A pointer to the array of words */
+    enum {
+      NWORDS = 1626
+    };
+    std::vector<std::string> word_list; /*!< A pointer to the array of words */
     std::unordered_map<epee::wipeable_string, uint32_t> word_map; /*!< hash table to find word's index */
     std::unordered_map<epee::wipeable_string, uint32_t> trimmed_word_map; /*!< hash table to find word's trimmed index */
     std::string language_name; /*!< Name of language */
@@ -96,7 +99,7 @@ namespace Language
     {
       int ii;
       std::vector<std::string>::const_iterator it;
-      if (word_list.size () != 1626)
+      if (word_list.size () != NWORDS)
         throw std::runtime_error("Wrong word list length for " + language_name);
       for (it = word_list.begin(), ii = 0; it != word_list.end(); it++, ii++)
       {
@@ -138,6 +141,12 @@ namespace Language
     virtual ~Base()
     {
     }
+    void set_words(const char * const words[])
+    {
+      word_list.resize(NWORDS);
+      for (size_t i = 0; i < NWORDS; ++i)
+        word_list[i] = words[i];
+    }
     /*!
      * \brief Returns a pointer to the word list.
      * \return A pointer to the word list.
diff --git a/src/mnemonics/lojban.h b/src/mnemonics/lojban.h
index 0966a1169..5162a8ec9 100644
--- a/src/mnemonics/lojban.h
+++ b/src/mnemonics/lojban.h
@@ -56,7 +56,10 @@ namespace Language
   class Lojban: public Base
   {
   public:
-    Lojban(): Base("Lojban", "Lojban", std::vector<std::string>({
+    Lojban(): Base("Lojban", "Lojban", {}, 4)
+    {
+      static constexpr const char * const words[NWORDS] =
+      {
       "backi",
       "bacru",
       "badna",
@@ -1683,8 +1686,8 @@ namespace Language
       "noltruti'u",
       "samtci",
       "snaxa'a",
-      }), 4)
-    {
+      };
+      set_words(words);
       populate_maps();
     }
   };
diff --git a/src/mnemonics/portuguese.h b/src/mnemonics/portuguese.h
index 0195389ce..af04f89c2 100644
--- a/src/mnemonics/portuguese.h
+++ b/src/mnemonics/portuguese.h
@@ -72,7 +72,10 @@ namespace Language
   class Portuguese: public Base
   {
   public:
-    Portuguese(): Base("Português", "Portuguese", std::vector<std::string>({
+    Portuguese(): Base("Português", "Portuguese", {}, 4)
+    {
+      static constexpr const char * const words[NWORDS] =
+      {
         "abaular",
         "abdominal",
         "abeto",
@@ -1699,8 +1702,8 @@ namespace Language
         "zeloso",
         "zenite",
         "zumbi"
-      }), 4)
-    {
+      };
+      set_words(words);
       populate_maps();
     }
   };
diff --git a/src/mnemonics/russian.h b/src/mnemonics/russian.h
index d5dd556ef..f3e70ede6 100644
--- a/src/mnemonics/russian.h
+++ b/src/mnemonics/russian.h
@@ -51,7 +51,10 @@ namespace Language
   class Russian: public Base
   {
   public:
-    Russian(): Base("русский язык", "Russian", std::vector<std::string>({
+    Russian(): Base("русский язык", "Russian", {}, 4)
+    {
+      static constexpr const char * const words[NWORDS] =
+      {
         "абажур",
         "абзац",
         "абонент",
@@ -1678,8 +1681,8 @@ namespace Language
         "яхта",
         "ячейка",
         "ящик"
-      }), 4)
-    {
+      };
+      set_words(words);
       populate_maps();
     }
   };
diff --git a/src/mnemonics/spanish.h b/src/mnemonics/spanish.h
index 51f38fede..4d7a896a6 100644
--- a/src/mnemonics/spanish.h
+++ b/src/mnemonics/spanish.h
@@ -72,7 +72,10 @@ namespace Language
   class Spanish: public Base
   {
   public:
-    Spanish(): Base("Español", "Spanish", std::vector<std::string>({
+    Spanish(): Base("Español", "Spanish", {}, 4)
+    {
+      static constexpr const char * const words[NWORDS] =
+      {
         "ábaco",
         "abdomen",
         "abeja",
@@ -1699,8 +1702,8 @@ namespace Language
         "risa",
         "ritmo",
         "rito"
-      }), 4)
-    {
+      };
+      set_words(words);
       populate_maps(ALLOW_SHORT_WORDS);
     }
   };