nomad
Concise Oxford English Dictionary © 2008 Oxford University Press:
nomad /ˈnə(ʊ)mad/
▶noun a member of a people that continually moves to find fresh pasture for its animals and has no permanent home.
■ a wanderer.
– derivatives
nomadism noun.
nomadism noun.
– origin C16: from Fr. nomade, via L. from Gk nomas, nomad- (adj.), from the base of nemein ‘to pasture’.
'nomad' also found in these Oxford entries:

