Origin: Latin suffix -ary
Discretionary has 3 different meanings across 1 category:
having or using the ability to act or decide according to your own discretion or judgment
"The commission has discretionary power to award extra funds"
(especially of funds) not earmarked; available for use as needed
"discretionary funds"
"discretionary income"
Available at one's discretion; able to be used as one chooses; left to or regulated by one's own discretion or judgment.
"Employees may use their discretionary bonus only for personal expenses, not for company upgrades."