trapezoid.
trapezoid, trapezium (quadrilateral with two sides parallel and two sides non-parallel)
Meaning & usage
trapezoid, trapezium (quadrilateral with two sides parallel and two sides non-parallel)
Where this word comes from
Etymology tree Proto-Indo-European *tr̥- Proto-Indo-European *ped- Proto-Indo-European *-s Proto-Indo-European *pṓds Proto-Indo-European *-is Proto-Indo-European *-h₂ Proto-Indo-European *-ih₂ Proto-Indo-European *tr̥-ped-ih₂-der. Ancient Greek τράπεζα (trápeza) Proto-Indo-European *weyd- Proto-Indo-European *-os Proto-Indo-European *wéydos Proto-Hellenic *wéidos Ancient Greek εἶδος (eîdos) Proto-Indo-European *-os Proto-Indo-European *-ēs Proto-Hellenic *-ēs Ancient Greek -ης (-ēs) Ancient Greek -ειδής (-eidḗs) Ancient Greek τρᾰπεζοειδής (trăpezoeidḗs)lbor. French trapézoïdebor. Polish trapezoid Borrowed from French trapézoïde. By surface analysis, trapez + -oid.
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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.