裾
すそ · suso · JLPT N1 · noun
cuff
👖 衣 (clothing) + 居 (sit, dwell) = the edge of clothing where the fabric sits low
The left part 衣 marks clothing, and the right part 居 supplies the sound kyo, which is a hint for the on-reading. The Japanese reading suso is a native word, so learn it as its own term for a cuff or hem.