no·mad 
(nōmăd′)
(nōmăd′)n.
1. A member of a group of people who have no fixed home and move according to the seasons from place to place in search of food, water, and grazing land.
2. A person with no fixed residence who roams about; a wanderer.
[French nomade, from Latin nomas, nomad-, from Greek nomas, wandering in search of pasture; see nem- in the Appendix of Indo-European roots.]
no·madic adj.
no·madi·cal·ly adv.
nomad′ism n.