coot
Concise Oxford English Dictionary © 2008 Oxford University Press:
coot/kuːt/
▶noun
- 1 (pl. same) an aquatic bird of the rail family with black plumage and a white bill that extends back on to the forehead as a horny shield. [Fulica atra and related species.]
- 2 (usu. old coot) informal a stupid or eccentric person, typically an old man.
– origin ME: prob. of Du. or Low Ger. origin.
'coot' also found in these Oxford entries:

