rocznicom
Rocznicom is the dative plural form of the Polish noun rocznica, meaning anniversary. Rocznica denotes a recurring annual date that is celebrated or commemorated, such as the anniversary of a wedding, a company’s founding, or a national holiday. The word derives from rok, “year,” with the suffix -nica.
In Polish, rocznica is a feminine noun. Its full declension is:
Singular: nominative rocznica, genitive rocznicy, dative rocznicy, accusative rocznicę, instrumental rocznicą, locative rocznicy.
Plural: nominative rocznice, genitive rocznic, dative rocznicom, accusative rocznice, instrumental rocznicami, locative rocznicach.
Rocznicom is the dative plural form.
Usage notes: The form rocznicom is used when the anniversaries are the indirect object or beneficiary of