verb-intransitive. To come to one as a gain, addition, or increment: interest accruing in my savings account. verb-intransitive. To increase, accumulate, or come about as a result of growth: common sense that accrues with experience. verb-intransitive. To come into existence as a claim that is legally enforceable.v. To accumulate over time: I have accrued 15 days of sick leave.