Save Gender Feminine Usage Japanese (Rare) Scripts 玖衣子, 来生子, 空伊子, etc.(Japanese Kanji) Pronounced Pron. KOO-EE-KO [key] Meaning & History From Japanese 久 (ku) meaning "long time", 衣 (i) meaning "clothing, garment", and 子 (ko) meaning "child, sign of the rat, first sign of the Chinese zodiac". Other kanji combinations can be used.