冠
かんむり · kanmuri · JLPT N2 · noun
crown
👑 Etymology: 冖 cover + 元 head = a cover worn on the head, i.e. a crown
The top part 冖 means cover, and 元 stands for the head, so 冠 is literally something covering the head. Its reading かんむり names the same crown-like thing.