The leu closed at 4.377/4.3785 per euro, from 4.3755/4.3765 per euro Tuesday.
Elsewhere in the region, the leu’s peers were losing up to 0.5% against the euro.
The national currency opened marginally higher at 4.374/4.375 per euro, but started to retreat shortly after, hitting the day’s low of 4.38 per euro.
The central bank set the leu’s reference at 4.3778 to the euro, weaker on the day. Against the US dollar, the leu’s indicative lost 0.5% to 3.3454 units.
On the money market, overnight rates rose to 3%-3.5% a year, from 2.5%-3% a year in the previous day.