Mope (verb)

1. To feel or show dejection; to be in a state of low spirits or depression.
2. To move or act in a slow, listless, or aimless way.
3. To spend time idly or in a bored or depressed state.

Origin:

The origin of the word is uncertain, first use in english in the 16th century.

Examples:

1. He moped around the house all day after losing his job.
2. She moped after her break-up and refused to go out with friends.
3. He moped around the house, feeling sorry for himself.
4. The child moped after losing the game.
5. He moped about the house, feeling sorry for himself.