deservement 

a) what one deserves

b) what one is worthy of deserving

1) He died a slow death of leprosy which was nothing less than his deservement
2) Batman is Gotham's need, not Gotham's deservement

deservement by analystthetherapist October 8, 2011

desirement 

An implied requirement, that is not specifically required.

It is a desirement to takeoff in under 2000 feet.

desirement by Ty June 3, 2004