縩

Its parts

• 糹 mì form of 糸: fine silk meaning
• 祭 jì to offer a sacrifice to (gods or ancestors) = 肘 + 示 sound

Other characters with 祭 as their sound:

察 chá蔡 Cài漈 jì傺 chì穄 jì瘵 zhài

Dictionaries file it under 糸.