Latin multiplicare: to make many, to multiply
Latin multus: much, many
The word "multiplier" is derived from the Latin word "multiplicator", which means "one who multiplies". The word "multiplicator" is itself derived from the Latin verb "multiplicare", which means "to make many" or "to multiply". The word "multiplicare" is derived from the Latin adjective "multus", which means "much" or "many"./ˈməltəˌplīər/
The multiplier effect is a key concept in economics.
乗数効果は経済学の重要な概念です。
The company used a multiplier of 2 to calculate its profits.
会社は利益を計算するために2という乗数を使いました。