That bolstered expectations of policy easing by the ECB next month and saw the euro drop to a two-month low against the yen and hit a 16-month trough against the pound earlier in the European session.
Reuters on Wednesday quoted sources as saying the ECB was preparing a package of policy options for its June meeting, including cuts in all its interest rates and targeted measures aimed at boosting lending to small- and mid-sized firms.
The euro was steady against the dollar around $1.37. It was up 0.3 percent against sterling near 82 pence, rebounding from a low just above 81 pence.
BoE douses hike expectations
Sterling fell to a one-month low against the dollar after the Bank of England doused expectations of near-term monetary tightening in its quarterly inflation report.
Some in the market had positioned themselves for a hawkish message from the Bank, which would have added to expectations that the bank could begin raising interest rates as early as later this year.
Versus the dollar, sterling was last trading around $1.68, down roughly 0.3 percent on the day.
In the report, the Bank said it remained in no rush to raise its benchmark interest rate from a record low 0.5 percent, and that it still saw borrowing costs rising in about a year's time.
It also noted that sterling appreciation was putting downward pressure on inflation.
Get the latest news on foreign exchange markets here.