Algonquian

(noun) a member of any of the North American Indian groups speaking an Algonquian language and originally living in the subarctic regions of eastern Canada; many Algonquian tribes migrated south into the woodlands from the Mississippi River to the Atlantic coast. Synonyms: Algonquin.

(noun) family of North American Indian languages spoken from Labrador to South Carolina and west to the Great Plains. Synonyms: Algonquin, Algonquian language.

(adj) of or relating to an Algonquian tribe or its people or language. Synonyms: Algonkian, Algonquin.