The dollar started in a cautious mood on Monday in what is shaping up to be a critical week for the prospect of U.S. rate cuts, while the yen's recent rebound was underpinned by wagers on rising rates at home.

The euro clung to its sharpest rise in four months on Thursday following hawkish remarks from a central bank policymaker, while the yen powered toward its strongest week in three months on growing bets Japan could hike interest rates in December.

The yen jumped to a six-week high against the dollar on Friday after faster-than-expected inflation in Tokyo supported bets for a Bank of Japan interest rate hike next month.