Scots for 'shoulder', the word shouder is used of a rounded part of a hill. In Mang Howes and Knowes (1925), Eliot Cowan Smith describes his view of Ruberslaw:
keekin bye the shooder o the Dunion.
Gaelic gualainn 'shoulder' is found in the mountain names Màm na Gualainn and Gualainn nan Osna.