This is the 13427th most frequent Russian word.
накопительную
Accumulative.
The word 'накопительную' is used as an adjective describing the discount system, suggesting it accumulates benefits over time.
Я выбрал накопительную систему скидок в магазине.
I chose a cumulative discount system in the store.
Here, 'накопительную' is used to describe the role or characteristic of practice being cumulative.
Учитель объяснил нам накопительную роль тренировок в учебе.
The teacher explained to us the cumulative role of practice in studying.
The word 'накопительная' is employed to describe the model of rewards as cumulative, building up over time.