You searched for: “an apparatus for applying mechanical power to do work”
A unit related to: “an apparatus for applying mechanical power to do work”
mechano-, mechan-; mechanico-; machin-
(Greek makhana, machana > Latin machina: machine, device, tool; an apparatus for applying mechanical power to do work; mekhanikos > machynen, decide a course of action, contrive, plot contrivance; a machine or the workings of machines)