czasach
Czasach is the locative plural form of the Polish noun czas, meaning time or period. It is used after prepositions to indicate a temporal context, roughly translating to “in the times” or “in the eras.” The expression is common in historical, journalistic, and literary writing. Examples include w czasach nowożytnych (in modern times), w czasach PRL-u (in the times of the Polish People’s Republic), or w czasach dzieciństwa (in childhood times).
Grammatical notes: czas has forms such as czasy (nominative plural), czasów (genitive plural), czasom (dative plural),
Usage and nuance: czasach tends to foreground cultural, social, or political characteristics associated with a period.