man power

noun

1. the power supplied by human physical exertions:

   an ancient building constructed entirely by man power.

2. a unit of power, assumed to be equal to the rate at which a person can do mechanical work, and commonly taken as 1/10 (0.1) horsepower.
3. rate of work in terms of this unit.
4. manpower.

Word History and Origins

Origin of man power¹

First recorded in 1860–65