Accrue

v. accumulate, amass, compile; increase; grow

Accrual is derived from the verb , which describes the gathering or clustering of things together over time, as atoms, or it describes a general increase in number, as in interest.
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Verb
1. grow by addition; "The interest accrues"
(hypernym) increase
(hyponym) redound
(derivation) accumulation, accrual, accruement
2. come into the possession of; "The house accrued to the oldest son"
(synonym) fall
(hypernym) change hands
(verb-group) fall, light
(derivation) accumulation, accrual, accruement

n. enlargement, extension; elongation

v. increase, boom, enhance, expand, widen

adj. renewed, swollen

(n.)
To increase; to augment.
  

(n.)
To come to by way of increase; to arise or spring as a growth or result; to be added as increase, profit, or damage, especially as the produce of money lent.
  

(n.)
Something that accrues; advantage accruing.