Zheng Yun (Correct Rhymes) notes the pronunciation as que. It is pronounced the same as que. The Records of the Grand Historian (Shiji), Book of the Celestial Officials, records: "Dui er zhe que." Originally written as the character que, it later evolved into que, and then transformed into que. Zi Collection, Page Position: Upper Radical: Hard (què) Page 150, Entry 05