derive

• 由来する。
• vi.
• n. （フランス語で）人名；由来する。

de-, から, 下る, 離れる.-riv、流れる、語源的にはrun、rivuletと同じ。 もともとは源泉から流れ落ちることで、派生的に派生した。

derive

derive: [14] Like rival, derive comes ultimately from Latin rīvus ‘stream’. This was used as the basis of a verb dērīvāre, formed with the prefix dē- ‘away’, which originally designated literally the ‘drawing off of water from a source’. This sense was subsequently generalized to ‘divert’, and extended figuratively to ‘derive’ (a metaphor reminiscent of spring from). English acquired the word via Old French deriver.
=> rival

derive (v.)

late 14c., from Old French deriver "to flow, pour out; derive, originate," from Latin derivare "to lead or draw off (a stream of water) from its source" (in Late Latin also "to derive"), from phrase de rivo (de "from" + rivus "stream;" see rivulet). Etymological sense is 1550s. Related: Derived; deriving.

1. Most patients derive enjoyment from leafing through old picture albums.

ほとんどの患者は古いアルバムをめくるのが好きです。

2.Nor does scientific knowledge derive straightforwardly from experiments and observations.

科学的知識も簡単に試験や観察から得られるわけではない。

3.Females and cubs clearly derive some benefit from living in groups.

雌獣と子供は明らかに群れの恩恵を受けている。

4.It is valid to consider memory the oldest mental skill，from which all others derive .

記憶が最も原始的な心のスキルであり、他のすべてのスキルがそれに基づいて派生していると考える理由がある。

5.Mr Ying is one of those happy people who derive pleasure from helping others.

英さんはそのような人を助けるのが楽しい人です。