Jamieson, Fausset and Brown on Genesis 33:18

18. Shalem--that is, "peace"; and the meaning may be that Jacob came into Canaan, arriving safe and sound at the city Shechem--a tribute to Him who had promised such a return (compare Ge 28:15). But most writers take Shalem as a proper name--a city of Shechem, and the site is marked by one of the little villages about two miles to the northeast. A little farther in the valley below Shechem "he bought a parcel of a field," thus being the first of the patriarchs who became a proprietor of land in Canaan.