Overwork

Part of speech: noun (n.)

Work in excess of the usual or stipulated time or quantity; extra work; also, excessive labor.

Part of speech: verb (v.)

1. To work beyond the strength; to cause to labor too much or too long; to tire excessively; as, to overwork a horse.

2. To fill too full of work; to crowd with labor. My days with toil are overwrought. Longfellow.

3. To decorate all over.

Part of speech: verb (v.)

To work too much, or beyond one's strength.