energy: [16] Energy comes ultimately from Greek érgon ‘deed, work’. This was a descendant of Indo-European *wergon, which also produced English work, liturgy, organ, and orgy. Addition of the prefix en- ‘at’ produced the adjective energés or energōs ‘at work’, hence ‘active’, which Aristotle used in his Rhetoric as the basis of a noun enérgeia, signifying a metaphor which conjured up an image of something moving or being active. This later came to mean ‘forceful expression’, or more broadly still ‘activity, operation’. English acquired the word via late Latin energīa. => liturgy, organ, orgy, work
energy (n.)
1590s, "force of expression," from Middle French énergie (16c.), from Late Latin energia, from Greek energeia "activity, action, operation," from energos "active, working," from en "at" (see en- (2)) + ergon "work, that which is wrought; business; action" (see organ).
Used by Aristotle with a sense of "actuality, reality, existence" (opposed to "potential") but this was misunderstood in Late Latin and afterward as "force of expression," as the power which calls up realistic mental pictures. Broader meaning of "power" in English is first recorded 1660s. Scientific use is from 1807. Energy crisis first attested 1970.
例文
1. At 54 years old her energy and looks are magnificent.
彼女は54歳になって、精力と顔色はとても良いです。
2.Revenues from "green taxes "could then be channelled back into energy efficiency.
グリーン税収から得た収入はエネルギー効率の向上に振り向くことができる。Brazil says its constitution forbids the private ownership of energy assets.
ブラジルは、個人がエネルギー資産を占有することを憲法で禁止していると主張している。
4.He told Americans that solving the energy problem was very important.
エネルギー問題の解決が非常に重要であることをアメリカ人に伝えた。
5.We couldn 't even summon up the energy to open the envelope.