the act of accumulating
"The company's annual report highlights a significant accrual of profits from their new product line over the last fiscal year."
An increase; something that accumulates, especially an amount of money that periodically accumulates for a specific purpose
"The company's annual report showed a steady accrual in its emergency fund over the past three years."
Accrual comes from the word accrue combined with the suffix -al. It originally referred to something that grows or accumulates over time.