Attestation is a noun that refers to evidence or confirmation.

The Latin word testis (TESS dis) means ‘witness.’ It’s related to words like ‘testify’ and ‘attest.’ These are verbs that can describe things a person does to give evidence of the truth. Our word of the day is a noun that simply refers to the evidence of the truth. For example: It was difficult to accept the horrible events that took place that afternoon at the pool hall, but the video camera provided attestation of it all, so there was no denying the truth.