This is the 12530th most frequent German word.
walliser
"Walliser" refers to something or someone from Wallis (Valais), a canton in Switzerland.
Here, 'Walliser' functions as an adjective, describing something as being from Wallis.
Der Walliser Käse ist weltweit bekannt.
The Walliser cheese is famous worldwide.
In this sentence, 'Walliser' is used as a noun to refer to a person from Wallis.
Ein Walliser führte uns durch das Tal.
A Walliser guided us through the valley.
'Walliser', similar to the first sentence, functions here as an adjective, qualifying the traditions as originating from Wallis.