 The Hackensack and Tappan Indians spoke the Unami Lenape dialect the distinct difference between Unami and Munsee us Unami used the letter R along with its sound such as Chief Oritam, the Munsee language did not have the letter R or sound in the language, source Author Anthropologist Evan Pritchard.Sicomac, said to mean "resting place for the departed" or "happy hunting ground", is an area of Wyckoff that, according to tradition, was the burial place of many Native Americans, including Chief Oratam of the Ackingshacys, and many stores and buildings there are named after the area's name, including Sicomac Elementary School.Most Native Americans had left by the 19th century, although a small group lived near Clinton Avenue until 1939.