代偿

代偿	dài cháng	(medical) compensation / to repay a debt or obligation in place of sb else
代	dài	to be a substitute for; to act on behalf of; to replace; to substitute / generation; dynasty; age; period; (historical) era; (geological) eon
偿	cháng	to repay / to compensate for / to recompense / to fulfill (hopes etc)