Today, the Stockbridge-Munsee people only speak English.Historically, they spoke:Mahican (also known as Mohican), a language of the Eastern Algonquian subgroup of the Algonquian language family, extinct since 1940.Munsee (also known as Delaware), an endangered language of the Eastern Algonquian subgroup of the Algonquian language family, itself a branch of the Algic language family. As of 2018, Munsee is believed to have about 4 or 5 speakers, all over the age of 77.