accidentally, even number, couple, man & wife, same kind
JLPT3 G7 S11 F1602
禺 here an abbreviated form# of 遇 (form a pair) + 人 person → *companion* → *doll* (← object similar in appearance to a human, the two of which then form a pair); *even number* (← pairing). Also, *by accident* and *chance* (← chance resemblance).
[Full Kanji Etymology List]