矇矇亮 [蒙蒙－]

Jyutping mung4 mung4 loeng6
Pinyin mēng mēng liàng

Definitions (CC-CEDICT)
  1. dawn
  2. the first glimmer of light
Definitions (Wiktionary)
  1. adj
    at the crack of dawn
    (syn.) 天蒙光, 天矇光