maj

Maj is May, borrowed from Latin Maius. In dates it takes the genitive form maja: dnia piątego maja, on the fifth of May. It is the shortest month name and easy to miss inside a long written-out date.

In cramped handwriting maja can look like marca, March; look for the j. Doubled dates such as dnia trzeciego/piętnastego maja give the Julian and then the Gregorian day. The Roman numeral for May is V.