This is the 1085th most frequent Polish word.
lutym
"Lutym" is the instrumental case of "luty," meaning "February" in Polish.
The word 'lutym' is used in the locative case to indicate time: 'in February'.
W lutym zima jest najsurowsza.
In February, the winter is the harshest.
The word 'lutym' is employed in the locative case, describing an unusual condition during February.
Wyjątkowo w lutym pogoda była bardzo ciepła.
Exceptionally in February, the weather was very warm.
Here, 'lutego' is in the genitive case, used after the phrase 'pod koniec' (at the end of), which is part of the grammatical requirement concerning the usage of time expressions.