Save Type Surname (from given name) Usage Japanese Scripts 嘉悦, etc.(Japanese Kanji) Pronounced Pron. KAH-ET-SOO [key] Meaning & History From Japanese 嘉 (Ka) meaning "applaud, praise, esteem, happy, auspicious", and 悦 (etsu) meaning "ecstasy, joy, rapture". Other kanji combinations are possible, and can create alternate meanings.