derivation

n.派生；推导；来历

衍生物；导数.

As in Arabic and Hebrew, Esperanto makes up most of its vocabulary through derivation from invariable roots. 同阿拉伯语和希伯来语一样，世界语通过在不变的词根上派生出大多数的词汇。

Every sentence has a canonical derivation. 每个句子都有一个规范推导。

Our derivation lacks rigour in this regard. 我们的推导在这方面是不严格的。

The derivation of the poem isn't confirmed. 这首诗出处不详。

The custom is of Scottish derivation. 这种风俗起源于苏格兰。

adj.诱导的；衍生的