Wu Collection, Middle Volume
Radical: White (bái)
Ai
Kangxi stroke count: 15
Page 788, Entry 35
Pronounced ai (level tone).
Shuowen Jiezi (Shuowen): The white color of frost and snow.
Han Dynasty, Liu Xin, Fu on Attaining One's Early Aspirations (Suichu Fu): Drifting snow is ai-ai (white and bright).
Jin Dynasty, Consort Zuo, Fu on Thoughts of Separation (Lisi Fu): Frost is ai-ai (white and bright) and clings to the courtyard.
Du Fu, Late Clear Weather Poem: Cliffs sink and valleys vanish, white and ai-ai.
Also pronounced yi (level tone). The meaning is the same.
Liu Zhen, Poem Gifted to the Commander of the Five Officials: The cool wind blows sand and gravel, how the frost air is ai-ai. The bright moon illuminates the silk curtains, the magnificent lamp scatters glowing radiance.
In the Collected Rhymes (Jiyun), it is sometimes written as the variants ai and ai.