| 词源 |
trapezium n.1560s, from Late Latin trapezium, from Greek trapezion "irregular quadrilateral," literally "a little table," diminutive of trapeza "table, dining table," from tra- "four" (from PIE root *kwetwer- "four") + peza "foot, edge," related to pous, from PIE root *ped- "foot." Before 1540s, Latin editions of Euclid used the Arabic-derived word helmuariphe, helmuaripha. As the name of a bone in the wrist, it is recorded from 1840. updated on January 05, 2022 |