Word: Testify
Origin: Latin
Meaning: To give evidence under oath as a witness in a court proceeding.
Example: Three witnesses were called/summoned to testify at the trial.
Word: Uberrima fides
Origin: Latin
Meaning: utmost good faith
Example: The concept that a party to certain types of contract must act in Uberrima fides and declare all relevant facts to the other side even if they do not ask for.