續一切經音義 7.166

7.166

𣱦氳（上符分反下於云反說文氛氳祥氣或作氛元氣也二字並從气分昷聲气音氣也）。

𣱦氳 (The upper character is pronounced with the fanqie fu + fen; the lower character is pronounced with the fanqie yu + yun. The Shuowen says: "氛氳 denotes auspicious vapor; sometimes written as 氛, the primordial vapor." Both characters are classified under 'vapor' [气], with 分 and 昷 as phonetic components. 气 has the sound qì).