ラン, ロン, みだ.れる, みだ.る, みだ.す, みだ, おさ.める, わた.る, ら
riot, war, disorder, disturb
JLPT2 G6 S7 F755
The relevant bronzeware inscription form shows the left-hand element to have been two hands untangling a ball of threads by by pulling the threads up and down (compare 䜌 as described in 戀). Meanwhile, 乚 is a variant of 乙 (rise and hit a block). The combination of elements suggests a ball of tangled threads → *confusion*; *disorder* → *disturb*; *disarrange*; *rebel*; *riot*.
[Full Kanji Etymology List]