夂
チ, しゅう, ふゆがしら
winter radical (no. 34)
JLPT0 G13 S0 F5000
A depiction of a long *leg* pointed downward in being dragged → walk/proceed slowly → *reach an impasse*. Also, *foot*. In many reference sources 夂 is paired with 夊, but they are separate characters.
[Full Kanji Etymology List]