Rescheduling

There are things going on in the Couch household today, but nothing I want to share, so I went searching for previous posts worth mentioning again.

Back in January of 2015, I wrote about Prepone. 

The post was about a friend who had recently returned from a trip to India and had collected a list of perfectly good English words we never see here. Prepone was the one that caught my attention, and it's a word I think deserves a place in American vernacular.

If we want to reschedule an activity for a later date or time, we postpone it, but what if we want to reschedule for an earlier time?  That's where we need a word like prepone - what else would you call it?