稼働 （カドウ） operation (of a machine), running, working (and earning money)

稼ぎ （カセギ） earnings

稼ぐ （かせぐ） to earn (income), to make (money), to score (points, victory), to gain (time), to play (for time), to work hard (at one's job), to labor, to labour, to toil

稼ぐに追いつく貧乏なし （かせぐにおいつくびんぼうなし） poverty is a stranger to industry, diligence is the mother of good fortune