Maintenance
Maintenance (sometimes called child maintenance or child support) is a regular payment by the parent with whom the child or children spend a lesser amount time (often a non-resident parent),to the other parent, towards the cost of raising the child or children.
Put simply, maintenance is money paid to the parent the children live with most of the time, by the other parent, to pay for the cost of caring for them.
In Irish law, both parents are obliged to provide for their dependent children according to their circumstances – whether they were/are married or not.