cormorant
Concise Oxford English Dictionary © 2008 Oxford University Press:
cormorant /ˈkɔːm(ə)r(ə)nt/
▶noun a large diving seabird with a long neck, long hooked bill, short legs, and mainly black plumage. [Phalacrocorax carbo and other species.]
– origin ME: from OFr. cormaran, from med. L. corvus marinus ‘sea raven’; the final -t is on the pattern of words such as peasant.
'cormorant' also found in these Oxford entries:

