We are aware of a limited number of Native American words in our vocabulary. Some are not every day words (such as the Algonquin Tomahawk [axe weapon and now missile]; Wigwam [His house - a Native American dwelling] and the Cree word squaw). Apart from place names most of the words seem to be from two Algonquian languages - Algonquin and Cree (my attributions may well be wrong - don't write).
Algonquin
1. Caribou - a type of reindeer
2. Caucus - advisor - a political committee
3. Moccasins - shoes
4. Pecan - a type of nut
5. Racoon - a nocturnal animal
Cree
6. Moose - North American elk
7. Pow wow - he dreams - A big meeting (originally a medicine man's conference).
8. Skunk - American carnivore that emits a strong smell
9. Squash - the vegetable
10. Chipmunk - North American ground squirrel
2. Caucus - advisor - a political committee
3. Moccasins - shoes
4. Pecan - a type of nut
5. Racoon - a nocturnal animal
Cree
6. Moose - North American elk
7. Pow wow - he dreams - A big meeting (originally a medicine man's conference).
8. Skunk - American carnivore that emits a strong smell
9. Squash - the vegetable
10. Chipmunk - North American ground squirrel
From Algonquin we also get terrapin (a freshwater tortoise) and from Cree, Eskimo (eaters of raw flesh. Eskimos call themselves "Inuit"); Opossum (small tree-dwelling American marsupial).
Other words worth noting here are toboggan (Micmac), totem (Ojibwa) and Tepee (Sioux).
For more see here