乱す
みだす · midasu · JLPT N1 · verb-godan
to disturb
乱 — hand 又 + tangled silk 𠬪/乿 component
乱 is the simplified form of 亂. The traditional character depicts hands above and below untangling silk threads on a frame, with 乙 on the right. It originally meant 'to put tangled threads in order,' but came to mean both 'disorder' and 'to govern chaos.'