czwartek.
Thursday
Meaning & usage
Thursday
synonym of kwadra (“quarter”) (lunar phase)
synonym of ćwierć (“one-quarter”)
Where this word comes from
Etymology tree Proto-Indo-European *kʷetwóresder. Proto-Indo-European *kʷetwr̥- Proto-Indo-European *-tós Proto-Indo-European *kʷetwr̥tHos Proto-Balto-Slavic *ketwirtas Proto-Slavic *četvьrtъ Proto-Indo-European *-kos Proto-Slavic *-kъ Proto-Slavic *-ъkъ Proto-Slavic *četvьrtъkъ Old Polish czwartek Polish czwartek Inherited from Old Polish czwartek. By surface analysis, czwarty (“fourth”) + -ek.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.