What is "durrenhorn"

The Dürrenhorn (4,035 m) (also Dirruhorn) is a summit in the Pennine Alps in Switzerland. It lies towards the northern end of the Nadelgrat, a high-level ridge running roughly north–south above the resort of Saas-Fee to the east, and the Mattertal to the west. It is part of the Mischabel range, which culminates at the Dom (4,545 m).