案じる
あんじる · anjiru · JLPT N1 · noun
to ponder
📝 案 (plan/idea) + じる: keep turning a plan over, so pondering it or fretting about it
案 means plan or idea. Turning a plan over and over in your thoughts gives 案じる: to ponder it, or to worry about how it will turn out, especially about someone you care for.