name of a mountain
峱 is a rare kanji used only as the name of a specific mountain. Its standalone meaning is limited to that proper name.
峱 combines 山 (mountain) with 狃, which likely contributes the sound. The exact historical development is uncertain.
The mountain radical 山 sits inside a shape that resembles an animal. Picture a mountain named after a wild creature that roams its slopes.
For ドウ, imagine a mountain path that leads you through a dark, echoing tunnel: the sound 'dough' (ドウ) reverberates off the walls as you walk.
—