This is the 711th most frequent Latvian word.
dienām
The Latvian word "dienām" means "for days" or "to days" in English.
Here, 'dienām' refers to the days of a period (autumn) and is used in the plural dative case to describe the experience concerning the days.
Rudenī dienām kļūst īsākas.
In autumn, the days become shorter.
In this sentence, 'dienām' is utilized in the plural dative case to indicate the time span ('for days').
Viņš strādā dienām un naktīm bez atpūtas.
He works for days and nights without rest.
Here, 'dienām' is used as the subject in the dative case to express the progression of days affecting the change in weather.