rollover
Concise Oxford English Dictionary © 2008 Oxford University Press:
rollover/ˈrəʊləʊvə(r)/
▶noun
- 1 Finance the extension or transfer of a debt or other financial arrangement.
- 2 Brit. (in a lottery) the accumulative carry-over of prize money to the following draw.
'rollover' also found in these Oxford entries:

