Coot and Dotard

Coot noun - Slate-black slow-flying birds somewhat resembling ducks.

Dotard and coot are semantically related. In some cases you can use "Dotard" instead a noun "Coot".

Dotard noun - An oldster in his dotage; someone whose age has impaired his intellect.

Coot and dotard are semantically related. Sometimes you can use "Coot" instead a noun "Dotard".