That which holds other things and gives them a bound. From holding-together, the same root as content and contentment.
Latin continere (to hold together, contain), from com- (together) + tenere (to hold); that which holds other things and gives them a bound, sharing its root with content and contentment.
That which holds other things and gives them a bound. It shares its root with content and with contentment — holding-together runs through all three.