(archaic) substitution / (archaic) price, cost, charge / (historical) shiro, a unit of land

world, society / (archaic) age, generation, era of rule

generation of a royal family / era, age, decade

charge, fare, rate, fee, price, rent / (indicating years spanning a specific period) -ies, -hundreds

substitute / alternate / representative / generation

art / technique / skill / means / trick / resources / magic

technique / art / way, means

means, way

Eggcorn of 対症療法 (taishō ryōhō).

a natural phenomenon