The amount paid, charged, or engaged to be paid, for anything bought or taken in barter; charge; expense; hence, whatever, as labor, self-denial, suffering, etc., is requisite to secure benefit.
“One day shall crown the alliance on 't so please you,
Here at my house, and at my proper
cost.”
— Shak.
“At less
cost of life than is often expended in a skirmish, [Charles V.] saved Europe from invasion.”
— Prescott.