Use 'hold over' when something is postponed for a short period, not cancelled. The committee will hold over the vote until more members are present.
Pro Tip 2/3
Expectation of resolution
'Hold over' often implies that a postponed event or decision is expected to be addressed later on. We'll hold over discussions about the budget until next quarter.
Pro Tip 3/3
Not for long-term
'Hold over' is not used for delays or postponements that are indefinite or very long term. Let's hold over the meeting until tomorrow, not indefinitely.