JLPT1 G7 S8 F1498
叧# combines an abbreviated form of 冎 (joint of a bone) + 刀 sword/knife → sever/separate a limb from its joint. 拐 adds 手 hand/action indicator to reinforce the idea of physical separation, eventually acquiring the specific sense of separating a person from his/her kin → *kidnap*. Also,*deceive* (← use deception in kidnapping).
[Full Kanji Etymology List]