attest

动词 attest:

1. provide evidence for; stand as proof of; show by one's behavior, attitude, or external attributes
   同义词：certify, manifest, demonstrate, evidence
2. authenticate, affirm to be true, genuine, or correct, as in an official capacity
3. give testimony in a court of law
   同义词：testify, take the stand, bear witness
4. establish or verify the usage of

1. Several witnesses can attest to her good character.
   好几位证人证实她品行端正。
2. The child's good health attests to his mother's care.
   孩子的健康证实他母亲的悉心照料。

at.test

v.（动词）
at.test.ed,at.test.ing,at.tests
v.tr.（及物动词）
To affirm to be correct, true, or genuine.
宣称…为真实的：肯定是确实的、真实的或正确的

To certify by signature or oath.
证明，证实：用签名或誓言来证明是真的
To certify in an official capacity.
证明，证实：以官方职位来证明是真的
To supply or be evidence of:
证据，作证：为…提供证明或作为…的证据：
例句：
splendid tombs that attested their power.See Synonyms at indicate
作为他们权力证据的辉煌墓碑参见 indicate

To put under oath.
使宣誓，使发誓
v.intr.（不及物动词）
To bear witness; give testimony:
证实，证明：提供证据；给出证言：
例句：
attested to their good faith.
证明他们的良好信誉

n.（名词）
Archaic Attestation.
【古语】 证实，证明，证据

来源：
Latin attest3ro
拉丁语 attest3ro
ad- [ad-]
ad- [前缀，表示.（运动的）方向.，.变化.]
test3ro [to be witness] from testis [witness] * see trei-
test3ro [做证明] 源自 testis [证人，证据] *参见 trei-

【引伸】
attest.ant
n.（名词）
at.testa.tion
attest.er 或
attes.tor
n.（名词）