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n. 可信赖性,真实性,可靠性

来源于希腊语authent(创造者) → 原创的自然是可信的。

拆分: auto-自己 + o脱落 + hent实干者 + -icity名词词尾,性状 ⇒ 原创性 ⇒ 权威性 ⇒ 可信性

短语:
a certificate of authenticity 认证书 
a debate over the authenticity of sth. 关于某事物真实性的争论
of doubtful authenticity 真实性存疑.
同源词: 
authentic                          

例:
a document of doubtful authenticity 真实性存疑的文件 
Despite its certificate of authenticity, the painting was found to be a fake. 尽管有认证书，这幅画仍被发现是赝品。 
There has been some debate over the authenticity of his will. 对于他的遗嘱的真实性一直有争论。