亅+0 = 1 

亅ㄐㄩㄝˊjué

  1. 二一四部首之一。

英"vertical stroke with hook" radical in Chinese characters (Kangxi radical 6)​, see also 豎鉤[shu4 gou1]
法crochet (radical)​
德Radikal Nr. 6 = Haken