Wu Collection, Lower Volume
Radical: Spirit (shì)
祟
Kangxi stroke count: 10
Page 842, Entry 05
Tang Rhymes (Tangyun), Collected Rhymes (Jiyun), Dictionary of Rhymes (Yunhui): Pronounced sui (falling tone).
Shuowen Jiezi: Divine calamity.
Xu says: Calamities are things invited by people, which the spirits then attach to. A portent (sui) is something the spirits produce themselves to warn humanity.
Zuo Commentary (Zuozhuan), First Year of Duke Zhao: Shichen and Tai Tai were sources of calamities. Also, Sixth Year of Duke Ai: The Yellow River caused a calamity.
History of the Former Han (Qian Hanshu), Biography of Jiang Chong: The calamity lay in witchcraft and sorcery.
Shigu note: A sign of misfortune or disaster, which ghosts and spirits use to reveal things to people. Therefore, the character is composed of the components for emerge and spirit.
Also, Collected Rhymes (Jiyun): Pronounced xu (falling tone). The meaning is the same.