Online Etymology Dictionary

camel (n.): Old English camel, perhaps via Old North French camel (Old French chamel, Modern French chameau), from Latin camelus, from Greek kamelos, from Hebrew or Phoenician gamal, perhaps related to Arabic jamala "to bear."

Another Old English word for the beast was olfend, apparently based on confusion of camels with elephants in a place and time when both were known only from travelers' vague descriptions. The Arabian have one hump (the lighter variety is the dromedary); the Bactrian have two.