oscitancy oscitancy /ˈɑsɪtənsi/

noun

1. An involuntary intake of breath through a wide open mouth; usually triggered by fatigue or boredom  ( oscitance , oscitancy , yawning , yawn , oscitation )
   an involuntary intake of breath through a wide open mouth; usually triggered by fatigue or boredom
    He could not suppress a yawn
   he could not suppress a yawn
    The yawning in the audience told him it was time to stop
   the yawning in the audience told him it was time to stop
    He apologized for his oscitancy
   he apologized for his oscitancy
   
   
2. Drowsiness and dullness manifested by yawning  ( oscitance , oscitancy )
   drowsiness and dullness manifested by yawning