What is a delayed triggered ability?

A delayed triggered ability is specifically characterized as an ability that will do something at a later time after a certain condition has been met. This type of ability does not resolve immediately at the moment the triggering condition occurs; instead, it is a promise to perform an action at a later point in the game.

For example, consider a card that creates a delayed trigger that says "At the beginning of your next upkeep, do X." The action associated with the triggered ability will occur only at the specified future time, not right when the trigger from its preceding event was established.

Other choices do not capture the essence of delayed triggered abilities accurately. They either describe characteristics of standard triggered abilities, which resolve immediately upon their triggering conditions, or introduce limitations that do not inherently belong to delayed triggers.