- equivalent (adj.)
[equivalent 词源字典]
- early 15c., from Middle French equivalent and directly from Late Latin aequivalentem (nominative aequivalens) "equivalent," present participle of aequivalere "be equivalent," from Latin aequus "equal" (see equal (adj.)) + valere "be well, be worth" (see valiant). As a noun from c. 1500, "that which is equal or corresponds to." Related: Equivalently.[equivalent etymology, equivalent origin, 英语词源]