means Of or relating to Switzerland, its people, language, or things — and often used as shorthand for precise neutrality, reliable banking, holey cheese, or many-bladed knives.

from From the people themselves: the Schwyz, one of the founding cantons of the old Swiss Confederacy, lent their name to the whole alliance. The English 'Swiss' arrived via French 'Suisse,' which traces back to that same German place-name. The endonym 'Switzerland' carries the same root, and the Latinate 'Helvetia' (still stamped on the coins and stamps) recalls the Helvetii, the Celtic tribe Julius Caesar wrote about as inhabiting the region long before the cantons banded together.