koszmarów
Koszmarów is the genitive plural form of the Polish noun koszmar, which means nightmare. In Polish grammar, koszmarów is used whenever the noun is in the genitive plural, for example after certain numerals and quantifiers, after prepositions that require the genitive, or in possessive constructions such as “of nightmares” or “without nightmares.” The corresponding nominative plural is koszmary, while other cases follow standard Polish noun declension for masculine nouns ending in -ar.
Etymology and usage context: The word koszmar is a native Polish noun with etymology generally tied to
Notes on grammar: Koszmarów is not used as a stand-alone nominative form; it operates within phrases that