reindeer
Concise Oxford English Dictionary © 2008 Oxford University Press:
reindeer/ˈreɪndɪə(r)/
▶noun (pl. same or reindeers) a deer with large branching antlers, native to the northern tundra and subarctic and domesticated in parts of Eurasia. [Rangifer tarandus.]
– origin ME: from ON hreindýri, from hreinn ‘reindeer’ + dýr ‘deer’.
'reindeer' also found in these Oxford entries:

