a. 1. Pertaining to dew; resembling, consisting of, or moist with, dew. [ 1913 Webster ]
A dewy mist Went and watered all the ground. Milton. [ 1913 Webster ]
When dewy eve her curtain draws. Keble. [ 1913 Webster ]
2. Falling gently and beneficently, like the dew. [ 1913 Webster ]
Dewy sleep ambrosial. Cowper. [ 1913 Webster ]
3. (Bot.) Resembling a dew-covered surface; appearing as if covered with dew. [ 1913 Webster ]