Definitions

1. verb

to bear witness or testify, especially in a formal or official capacity.

“In the court, he witnesseth to the events that took place that night.”

2. noun

a person who gives testimony or evidence, especially in a court of law.

“The key witness witnesseth the entire crime, providing crucial evidence to the police.”

3. archaic

to declare or testify to something, especially in a formal or official capacity.

“The king witnesseth that the treaty is binding on both parties.”