On Tuesday, the central bank set the official rate at 4.4758 per euro.
However, the leu extended its decline against the US dollar, as the reference was set at 3.665 units, from 3.6595 units yesterday.
The leu opened down versus the European currency, trading at 4.477/4.484 to the euro in the first minutes of the session. It later extended its decline towards an early low of 4.487 units.
The local currency gained slight ground, on low transferred volumes, before a large euro sale order was placed at around 12:00 local time (GMT1000). Several other orders were launched further and the leu reached a high at 4.461 units, before returning to 4.47 units at 13:00 local time, when the central bank sets the official rates.
On the money market, overnight rates rose to 0.26%-0.73% a year, from 0.06%-0.51% Tuesday.