When you need to delay an action or save something for a later time, there are several synonyms you can use instead of "keep until some time". Some options include "hold off", "defer", "postpone", "sustain", "withhold", "hang onto", "reserve", "put aside", and "retain". Each of these words conveys a slightly different connotation or emphasis, so it's important to choose the right one for your particular situation. Whether you're storing food for a future occasion, delaying a decision, or simply waiting to take action until the time is right, these synonyms give you plenty of options for expressing your intention.