testimonium, testimonii (n)
witness / testimony From the Vulgate
Eritis mihi testes (You shall be my witnesses) — Acts 1:8
In Scripture
Hic venit in testimonium ut testimonium perhiberet de lumine, ut omnes crederent per illum.
This man came for a witness, to give testimony of the light, that all men might believe through him.
Ioannes 1 · 7