Quadrilateral
/ˌkwɒd.rɪˈlæt.ər.əl/noun
A four-sided polygon.
Did you know?Its roots come from Latin, where *quadri-* meant “four” and *latus* meant “side,” so the word is basically a precise ancient blueprint for any four-sided form.
Etymological Timeline
Latin
Latin
quadrilaterus
“four-sided”
Late Latin
Latin
quadrilateralis
“four-sided”
Middle French
French
quadrilatéral
“four-sided”
18th Century
English
quadrilateral
“a four-sided figure”
Modern English
English
quadrilateral
“a polygon with four sides”
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