Difficult to accept; unpalatable.
Difficult or impossible to digest.
Anything that is difficult to digest.
Having a hardness and severity of nature or manner.
Grim and forbidding in appearance.
To propel or move backward or stern-first in the water.
A bird, the black tern.
The tail of an animal; now used only of the tail of a dog.
The hinder part of anything.
The post of management or direction.
The rear part or after end of a ship or vessel.