It is generally believed that the title "Kanadehon" comes from the names of Ako Roshi (lordless samurai of the Ako domain) ordered according to the traditional Japanese syllables, and that the title "Chushingura" (忠臣蔵) is derived from "Chushin Oishi Kuranosuke" (忠臣大石内蔵助) (Kuranosuke OISHI, the loyal vassal).
その外題は、赤穂浪士をいろは順にかけて「仮名手本」、そして「忠臣大石内蔵助」から「忠臣蔵」としたというのが一般的。