What is "sharitahrish"

Sharitahrish was principal chief or head man of the Grand Pawnees (main body of the Pawnee nation). He was descended from a line of chiefs, and, according to the law of descents, which selects the next of kin, if worthy, succeeded his elder brother, Tarecawawaho (Long Hair or Big Hair). They were sons of Sharitahrish, the first, a chief, who is mentioned in Pike's Expedition under the name of Characterish.