“Pisgah” means section , i.e. peak

Pisgah: (Numbers 21:20; 23:14; 3:27; 34:1) a mountain range or district, the same as or a part of, that called the mountains of Abarim. Comp. (32:49) with Deuteronomy 34:1 It lay on the east of Jordan contiguous to the field of Moab, and immediately opposite Jericho. Its highest point or summit --its "head"--was Mount Nebo. [See NEBO]