Save Gender Feminine Usage Japanese Scripts 久爾子, 久仁子, 久二子, 恭仁子, 玖爾子, 公仁子, 紅丹胡, etc.(Japanese Kanji) Pronounced Pron. KOO-NEE-KO [key] Meaning & History From Japanese 紅 (ku) meaning "vivid red, crimson", 玖 (ku) meaning "black jewel" or 恭 (ku) meaning "respect" combined with 爾 (ni) meaning "thou, you", and 胡 (ko) meaning "lake". Other kanji combinations are possible.