authentic

将“authentic”分解为“auth”和“-ent”部分。记住“auth”可以联想到“author”，即作者或原创，而“-ent”通常表示“……的”。所以，将这两个部分结合起来，可以想象一个作者创造出一个完全原创的、真实的作品，这样就能记住“authentic”表示真实、可信的意思。

authentic 真实的

来自author.

authentic

authentic: [14] Etymologically, something that is authentic is something that has the authority of its original creator. Greek authentikós was a derivative of the noun authéntēs ‘doer, master’, which was formed from autós ‘self’ and the base -hentēs ‘worker, doer’ (related to Sanskrit sanoti ‘he gains’). The adjective’s original meaning in English was ‘authoritative’; the modern sense ‘genuine’ did not develop fully until the late 18th century. (Greek authéntēs, incidentally, was pronounced /afthendis/, and was borrowed into Turkish as efendī, source of English effendi [17].)
=> effendi

authentic (adj.)

mid-14c., "authoritative," from Old French autentique (13c., Modern French authentique) "authentic; canonical," and directly from Medieval Latin authenticus, from Greek authentikos "original, genuine, principal," from authentes "one acting on one's own authority," from autos "self" (see auto-) + hentes "doer, being," from PIE *sene- "to accomplish, achieve." Sense of "entitled to acceptance as factual" is first recorded mid-14c.

Traditionally in modern use, authentic implies that the contents of the thing in question correspond to the facts and are not fictitious; genuine implies that the reputed author is the real one; but this is not always maintained: "The distinction which the 18th c. apologists attempted to establish between genuine and authentic ... does not agree well with the etymology of the latter word, and is not now recognized" [OED].

1. I had obtained the authentic details about the birth of the organization.

我已经掌握了有关该组织诞生的可靠的详细资料。

2. It is crucial that all documents presented are authentic and easily verifiable.

所有提交的文件必须真实且易于查证，这一点很关键。

3. They have to look authentic.

它们必须得看上去像真的。

4. I don't know if the painting is authentic.

我不知道这幅画是不是真迹。

5. This is an authentic news report. We can depend on it.

这是篇可靠的新闻报道, 我们相信它.

【real, authentic, genuine, true, actual, factual】
这组词都有“真的，真实的，实在的”的意思，其区别是：
real: 普通用词，含义较广，有时可与actual和genuine换用。指一切真实的或 表面看不出虚假的事物。
authentic: 常可与genuine换用，指与事实完全相符，强调准确可靠。
genuine: 普通常用词，指真正的，货真价实的，强调非人为或非虚假的。
true: 指同实际情况或标准完全一致。口语中多用。
actual: 指事物的实际存在，并非出自主观臆造。
factual: 与actual同义，但更测重根据事实，不扩大或缩小，不渲染。